Dominique de Werra

EPFL SB-DO
CM 1 620 (Centre Midi)
Station 10
1015 Lausanne

Dominique de Werra was born in Switzerland in 1942. He graduated in physical engineering at EPFL in 1965, and in 1969, a doctorate in technical sciences. From 1969 to 1971 he was professor at Waterloo University (Canada) in the Management Sciences department. He has been a visiting professor in various European and American High Schools. In 1971 he became professor of Operations Research in Mathematics at EPFL. In 1990, he was appointed Vice President of EPFL and in addition, he became Director of training in autumn 1993. His research focuses on discrete mathematics (combinatorial optimization, graph theory, algorithms, etc.) and their applications to industrial and informatics technology. He has participated and directed several interdisciplinary projects in production, distribution, energy and scheduling. His work leads in particular to the time management problem and specifically to calendar management for important projects (sports, education, etc.). In 1987-1988, he chaired the EURO association which encompasses the Operational Research in Europe. He is Dr. h.c. of Paris University and Ecole Polytechnique in Poznan, and he was the winner of the European gold medal (EURO) of Operational Research in 1995. In March 2000 he was appointed Dean of International Affairs.

2025

Conference Papers

Minimizing breaks in incomplete round-robin tournaments

D. de WerraS. UrrutiaL. Assunção

2025. 13 Latin American Algorithms, Graphs, and Optimization Symposium (LAGOS 2025), Buenos Aires, Argentina, 2025-11-10 - 2025-11-14. p. 94 - 101. DOI : 10.1016/j.procs.2025.10.285.

Book Chapters

Metaheuristics for Problems in Sports Scheduling

C. C. RibeiroS. UrrutiaD. de Werra

Handbook of Heuristics; Cham: Springer Nature Switzerland, 2025. p. 1 - 30.

2023

Journal Articles

A tutorial on graph models for scheduling round-robin sports tournaments

C. C. RibeiroS. UrrutiaD. de Werra

International Transactions In Operational Research. 2023. DOI : 10.1111/itor.13290.

Books

Combinatorial Models for Scheduling Sports Tournaments

C. C. RibeiroS. UrrutiaD. de Werra

Cham: Springer International Publishing, 2023.

Book Chapters

Leagues, Tournaments, and Schedules

C. C. RibeiroS. UrrutiaD. de Werra

Combinatorial Models for Scheduling Sports Tournaments; Cham: Springer Nature, 2023. p. 1 - 20.

Integer Programming Approaches

C. C. RibeiroS. UrrutiaD. de Werra

Combinatorial Models for Scheduling Sports Tournaments; Cham: Springer Nature, 2023. p. 99 - 115.

Combinatorial Structures

C. C. RibeiroS. UrrutiaD. de Werra

Combinatorial Models for Scheduling Sports Tournaments; Cham: Springer Nature, 2023. p. 21 - 56.

Metaheuristics and Local Search

C. C. RibeiroS. UrrutiaD. de Werra

Combinatorial Models for Scheduling Sports Tournaments; Cham: Springer Nature, 2023. p. 57 - 98.

2022

Journal Articles

The micro-world of cographs

B. AlecuV. LozinD. de Werra

Discrete Applied Mathematics. 2022. DOI : 10.1016/j.dam.2021.11.004.

2021

Journal Articles

Recoloring subgraphs of K-2n for sports scheduling

S. UrrutiaD. de WerraT. Januario

Theoretical Computer Science. 2021. DOI : 10.1016/j.tcs.2021.03.029.

2020

Journal Articles

Letter graphs and geometric grid classes of permutations: Characterization and recognition

B. AlecuV. LozinD. de WerraV. Zamaraev

Discrete Applied Mathematics. 2020. DOI : 10.1016/j.dam.2020.01.038.

Minimal graphs for 2-factor extension

CostaD. de WerraC. Picouleau

Discrete Applied Mathematics. 2020. DOI : 10.1016/j.dam.2019.11.022.

Conference Papers

The Micro-world of Cographs

B. AlecuV. LozinD. de Werra

2020. 31st International Workshop on Combinatorial Algorithms (IWOCA 2020), Bordeaux, France, 2020-06-08 - 2020-06-10. p. 30 - 42. DOI : 10.1007/978-3-030-48966-3_3.

Book Chapters

Les expériences de l’EPFL dans l’international

D. de Werra

The Many Facets of International Education of Engineers = Les Multiples Facettes de la Formation Internationale des Ingénieurs : Proceedings of the International Conference SEFI 2000, Paris, France, 6-8 September 2000 / edited by Jean Michel.; CRC Press, 2020.

2018

Conference Papers

Letter Graphs and Geometric Grid Classes of Permutations: Characterization and Recognition

B. AlecuV. LozinV. ZamaraevD. de Werra

2018. 28th International Workshop on Combinational Algorithms (IWOCA), Newcastle, AUSTRALIA, Jul 17-21, 2017. p. 195 - 205. DOI : 10.1007/978-3-319-78825-8_16.

2016

Reviews

Edge coloring: A natural model for sports scheduling

T. JanuarioS. UrrutiaC. C. RibeiroD. de Werra

European Journal of Operational Research. 2016. DOI : 10.1016/j.ejor.2016.03.038.

2015

Journal Articles

Combinatorics and Algorithms for Augmenting Graphs

K. K. DabrowskiV. LozinD. de WerraV. Zamaraev

Graphs and Combinatorics. 2015. DOI : 10.1007/s00373-015-1660-0.

Books

Operations Research and Enterprise Systems: 4th International Conference, ICORES 2015, Lisbon, Portugal, January 10-12, 2015, Revised Selected Papers

Cham: Springer International Publishing, 2015.

Book Chapters

Chromatic scheduling

D. de WerraA. Hertz

Topics in Chromatic Graph Theory; Cambridge University Press, 2015. p. 255 - 276.

2014

Journal Articles

Combinatorial Optimization [Preface]

D. de WerraN. MaculanA. R. Mahjoub

DISCRETE APPLIED MATHEMATICS. 2014. DOI : 10.1016/j.dam.2013.11.011.

Book Chapters

Graph Coloring Problems

D. De WerraD. Kobler

Paradigms of Combinatorial Optimization: Problems and New Approaches; Wiley Blackwell, 2014. p. 265 - 310.

2013

Book Chapters

Graph Coloring Problems

D. De WerraD. Kobler

Paradigms of Combinatorial Optimization: Problems and New Approaches; John Wiley and Sons, 2013. p. 265 - 310.

2012

Journal Articles

A note on chromatic properties of threshold graphs

B. RiesD. de WerraR. Zenklusen

Discrete Mathematics. 2012. DOI : 10.1016/j.disc.2012.01.036.

Conference Papers

(p,q) - Choosability of Grid Graphs

M. DemangeD. de Werra

2012. Annual International Conference on Computational Mathematics, Computational Geometry & Statistics (2012(, 2012. DOI : 10.5176/2251-1911_cmcgs57.

Book Chapters

Swiss Operations Research Society (Schweizerische Vereinigung Für Operations Research/Association Suisse Pour La Recherche Operationelle/Associazione Svizzera Di Ricerca Operativa)

J. KohlasD. de WerraL. M. Gambardella

Wiley Encyclopedia of Operations Research and Management Science; Wiley, 2012.

2011

Journal Articles

Minimum d-Transversals of Maximum-Weight Stable Sets in Trees

C. BentzM. C. CostaD. de WerraC. PicouleauB. Ries

Electronic Notes in Discrete Mathematics. 2011. DOI : 10.1016/j.endm.2011.09.022.

Minimum d-blockers and d-transversals in graphs

M.-C. CostaD. de WerraC. Picouleau

Journal Of Combinatorial Optimization. 2011. DOI : 10.1007/s10878-010-9334-6.

The mathematics of Peter L. Hammer (1936-2006): graphs, optimization, and Boolean models

E. BorosY. CramaD. de WerraP. HansenF. Maffray

Annals Of Operations Research. 2011. DOI : 10.1007/s10479-011-0913-4.

2010

Journal Articles

Blockers and transversals in some subclasses of bipartite graphs: When caterpillars are dancing on a grid

B. RiesC. BentzC. PicouleauD. de WerraM. -C. Costa  et al.

Discrete Mathematics. 2010. DOI : 10.1016/j.disc.2009.08.009.

On the use of graphs in discrete tomography

D. de WerraM.-C. CostaC. PicouleauB. Ries

Annals Of Operations Research. 2010. DOI : 10.1007/s10479-009-0649-6.

Split-critical and uniquely split-colorable graphs

T. EkimB. RiesD. de Werra

Discrete Mathematics And Theoretical Computer Science. 2010. DOI : 10.46298/dmtcs.484.

A projective algorithm for preemptive open shop scheduling with two multiprocessor groups

T. KisD. de WerraW. Kubiak

Operations Research Letters. 2010. DOI : 10.1016/j.orl.2009.10.007.

Book Chapters

Les mathématiques appliquées à l'École polytechnique de Lausanne

D. de WerraJ. Descloux

math.ch/100 Schweizerische Mathematische Gesellschaft – Société Mathématique Suisse – Swiss Mathematical Society 1910 - 2010; Zurich: European Mathematical Society, 2010. p. 241 - 245.

Complexity and Approximation Results for the Min Weighted Node Coloring Problem

M. DemangeB. EscoffierJ. MonnotV. T. PaschosD. De Werra

Combinatorial Optimization and Theoretical Computer Science: Interfaces and Perspectives: 30th Anniversary of the LAMSADE; Wiley-ISTE, 2010. p. 259 - 289.

Weighted Edge Coloring

M. DemangeB. EscoffierG. LucarelliI. MilisJ. Monnot  et al.

Combinatorial Optimization and Theoretical Computer Science: Interfaces and Perspectives: 30th Anniversary of the LAMSADE; Wiley-ISTE, 2010. p. 291 - 317.

2009

Journal Articles

A Magnetic Procedure for the Stability Number

A. HertzD. de Werra

Graphs And Combinatorics. 2009. DOI : 10.1007/s00373-010-0886-0.

Degree-constrained edge partitioning in graphs arising from discrete tomography

C. BentzM.-C. CostaC. PicouleauB. RiesD. de Werra

Journal of Graph Algorithms and Applications. 2009. DOI : 10.7155/jgaa.00178.

Graph coloring with cardinality constraints on the neighborhoods

M.-C. CostaD. de WerraC. PicouleauB. Ries

Discrete Optimization. 2009. DOI : 10.1016/j.disopt.2009.04.005.

2008

Journal Articles

Addendum to "Bicolored matchings in some classes of graphs"

M.-C. CostaD. de WerraC. PicouleauB. Ries

Graphs and Combinatorics. 2008. DOI : 10.1007/s00373-008-0771-2.

On a graph coloring problem arising from discrete tomography

C. BentzM.-C. CostaD. de WerraC. PicouleauB. Ries

Networks. 2008. DOI : 10.1002/net.20218.

Construction of balanced sports schedules using partitions into subleagues

A. GeinozT. EkimD. de Werra

Operations Research Letters. 2008. DOI : 10.1016/j.orl.2007.09.007.

Preemptive open shop scheduling with multiprocessors: polynomial cases and applications

D. de WerraT. KisW. Kubiak

Journal Of Scheduling. 2008. DOI : 10.1007/s10951-007-0050-8.

On two coloring problems in mixed graphs

B. RiesD. de Werra

European Journal of Combinatorics. 2008. DOI : 10.1016/j.ejc.2007.03.006.

A tutorial on the use of graphs in discrete tomography

M.-C. CostaD. de WerraC. PicouleauB. Ries

4OR. 2008. DOI : 10.1007/s10288-008-0077-5.

Polar cographs

T. EkimN. V. R. MahadevD. de Werra

Discrete Applied Mathematics. 2008. DOI : 10.1016/j.dam.2007.08.025.

Conference Papers

Finding Hamiltonian circuits in quasi-adjoint graphs

J. BlazewiczM. KasprzakB. Leroy-BeaulieuD. de Werra

2008. 5th International Conference on Graphs and Optimization, Leukerbad, SWITZERLAND, Aug, 2006. p. 2573 - 2580. DOI : 10.1016/j.dam.2008.03.014.

Polarity of chordal graphs

T. EkimP. HellJ. StachoD. de Werra

2008. 5th International Conference on Graphs and Optimization, Leukerbad, SWITZERLAND, Aug, 2006. p. 2469 - 2479. DOI : 10.1016/j.dam.2008.01.026.

Theses

Some coloring and walking problems in graphs

B. Leroy-Beaulieu

Lausanne, EPFL, 2008. DOI : 10.5075/epfl-thesis-4090.

2007

Journal Articles

Bicolored matchings in some classes of graphs

M.-C. CostaD. de WerraC. PicouleauB. Ries

Graphs and Combinatorics. 2007. DOI : 10.1007/s00373-006-0686-8.

Time slot scheduling of compatible jobs

M. DemangeD. de WerraJ. MonnotV. Paschos

Journal of Scheduling. 2007. DOI : 10.1007/s10951-006-0003-7.

Weighted stability number of graphs and weighted satisfiability: the two facets of pseudo-Boolean optimization

D. de WerraP. L. Hammer

Annals of Operations Research. 2007. DOI : 10.1007/s10479-006-0101-0.

Theses

Variations of coloring problems related to scheduling and discrete tomography

B. Ries

Lausanne, EPFL, 2007. DOI : 10.5075/epfl-thesis-3968.

Book Chapters

Problèmes de coloration dans les graphes

D. de WerraD. Kobler

Optimisation Combinatoire; Paris: Hermès Science, 2007. p. 95 - 141.

2006

Journal Articles

Construction of sports schedules with multiple venues

D. de WerraT. EkimC. Raess

Discrete Applied Mathematics. 2006. DOI : 10.1016/j.dam.2005.03.011.

On the approximation of Min Split-coloring and Min Cocoloring

M. DemangeT. EkimD. de Werra

Journal of Graph Algorithms and Applications. 2006.

Good and nice colorings of balanced hypergraphs

D. de Werra

Discrete Mathematics. 2006. DOI : 10.1016/j.disc.2005.12.044.

Some simple optimization techniques for self-organized public key management in mobile ad hoc networks

T. Bornand-JaccardD. SchindlD. de Werra

Discrete Applied Mathematics. 2006. DOI : 10.1016/j.dam.2005.12.002.

Using graphs for some discrete tomography problems

M. C. CostaD. de WerraC. Picouleau

Discrete Applied Mathematics. 2006. DOI : 10.1016/j.dam.2005.07.003.

Three is easy, two is hard: open shop sum-batch scheduling problem refined

I. V. GribovskaiaC. L. LeeV. StrusevichD. de Werra

Operations Research Letters. 2006. DOI : 10.1016/j.orl.2005.07.006.

Locally Restricted Colorings

I. BlöchligerD. de Werra

Discrete Applied Mathematics. 2006. DOI : 10.1016/j.dam.2005.05.012.

Theses

Generalized vertex coloring problems using split graphs

T. Ekim

Lausanne, EPFL, 2006. DOI : 10.5075/epfl-thesis-3629.

Reports

Variations of split-coloring in permutation graphs

M. DemangeT. EkimD. de Werra

2006

2005

Journal Articles

Bicolored matchings in some classes of graphs

M. C. CostaD. de WerraC. PicouleauB. Ries

Electronic Notes in Discrete Mathematics. 2005. DOI : 10.1016/j.endm.2005.06.033.

On split-coloring problems

T. EkimD. de Werra

Journal of Combinatorial Optimization. 2005. DOI : 10.1007/s10878-005-4103-7.

Variations on the Roy-Gallai Theorem

D. de WerraP. Hansen

4OR. 2005.

Path colorings in bipartite multigraphs

D. de Werra

European Journal of Operational Research. 2005. DOI : 10.1016/j.ejor.2003.05.007.

A hypocoloring model for batch scheduling

D. de WerraM. DemangeJ. MonnotV. T. Paschos

Discrete Applied Mathematics. 2005. DOI : 10.1016/j.dam.2004.06.016.

(p,k)-coloring problems in line graphs

M. DemangeT. EkimD. de Werra

Theoretical Computer Science. 2005. DOI : 10.1016/j.tcs.2005.09.037.

Partitioning cographs into cliques and stable sets

M. DemangeT. EkimD. de Werra

Discrete Optimization. 2005. DOI : 10.1016/j.disopt.2005.03.003.

A solvable case of image reconstruction in discrete tomography

M. C. CostaD. de WerraC. PicouleauD. Schindl

Discrete Applied Mathematics. 2005. DOI : 10.1016/j.dam.2005.03.006.

Theses

Suboptimal colorings and solution of large chromatic scheduling problems

I. Blöchliger

Lausanne, EPFL, 2005. DOI : 10.5075/epfl-thesis-3363.

Book Chapters

Hypergraph coloring by bichromatic exchanges

D. de Werra

Graph Theory and Combinatorial Optimization; Springer Verlag, 2005. p. 255 - 264.

Reports

2004

Journal Articles

On Some Properties of Suboptimal Colorings of Graphs

I. BlöchligerD. de Werra

Networks. 2004. DOI : 10.1002/net.10107.

Conference Papers

The hypocoloring problem: complexity and approximability results when the chromatic number is small

D. de WerraM. DemangeJ. MonnotV. T. Paschos

2004. 30th International Workshop, WG 2004, Bad Honnef, Germany, June 21-23, 2004. p. 377 - 388. DOI : 10.1007/978-3-540-30559-0_32.

Weighted coloring: on planar bipartite and split graphs: complexity and improved approximation

D. de WerraM. DemangeB. EscoffierJ. MonnotV. T. Paschos

2004. 15th International Symposium, ISAAC 2004, Hong Kong, China, December 20-22, 2004. p. 896 - 907. DOI : 10.1007/978-3-540-30551-4_76.

Theses

Some combinatorial optimization problems in graphs with applications in telecommunications and tomography

D. Schindl

Lausanne, EPFL, 2004. DOI : 10.5075/epfl-thesis-3082.

Book Chapters

Applications to timetabling

E. BurkeD. de WerraJ. Kingston

Handbook of Graph Theory; CRC Press London, 2004. p. 445 - 474.

Tabu search

A. HertzÉ. D. TaillardD. de Werra

Local Search in Combinatorial Optimization; Princeton University Press, 2004. p. 121 - 136.

Colorings and Related Topics

Z. TuzaG. GutinM. PlurnmerA. TuckerE. Burke  et al.

Handbook of Graph Theory; CRC Press, 2004. p. 340 - 483.

Reports

Color-blind Graphs and Suboptimal Colorings

I. BlöchligerD. de Werra

2004

Preemptive open shop scheduling with multiprocessors: polynomial cases and applications

D. de WerraT. KisW. Kubiak

2004

2003

Journal Articles

Colorations de graphes: fondements et applications

D. de WerraD. Kobler

RAIRO Operations Research. 2003. DOI : 10.1051/ro:2003013.

Struction revisited

G. AlexeP. L. HammerV. LozinD. de Werra

Discrete Applied Mathematics. 2003. DOI : 10.1016/S0166-218X(03)00388-3.

Using stable sets to bound the chromatic number

D. de WerraP. Hansen

Information Processing Letters. 2003. DOI : 10.1016/S0020-0190(03)00266-7.

Variations on the theorem of Birkhoff-von Neumann and extensions

D. de Werra

Graphs and Combinatorics. 2003. DOI : 10.1007/s00373-002-0496-6.

Partitioning the edge set of a bipartite graph into chain packings: complexity of some variations

D. de Werra

Linear Algebra and its Applications. 2003. DOI : 10.1016/S0024-3795(02)00691-2.

Conference Papers

Special issue on stability in graphs and related topics

V. LozinD. De Werra

2003. Stability in Graphs and Related Topics (2002), Switzerland, 2002-07-01 - 2002-07-01. p. 1 - 2. DOI : 10.1016/S0166-218X(03)00385-8.

Book Chapters

Constraints of availability in timetabling and scheduling

D. de Werra

Practice and Theory of Automated Timetabling IV; Springer Verlag, 2003. p. 3 - 23.

2002

Journal Articles

Complexity of some special types of timetabling problems

A. S. AsratianD. de Werra

Journal of Scheduling. 2002. DOI : 10.1002/jos.97.

Circular-arc graph coloring: on chords and circuits in the meeting graph

D. de WerraC. EisenbeisS. LelaitE. Stöhr

European Journal of Operational Research. 2002. DOI : 10.1016/S0377-2217(01)00058-3.

A generalized class-teacher model for timetabling problems

A. S. AsratianD. de Werra

European Journal of Operational Research. 2002. DOI : 10.1016/S0377-2217(01)00342-3.

Conference Papers

Weighted node coloring: when stable sets are expensive

M. DemangeD. de WerraJ. MonnotV. T. Paschos

2002. 28th International Workshop, WG 2002, Český Krumlov, Czech Republic, June 13–15, 2002. p. 113 - 125. DOI : 10.1007/3-540-36379-3_11.

Book Chapters

Connectivity, transitivity and chromaticity: the pioneering work of Bernard Roy in Graph Theory

D. de WerraP. HansenD. Bouyssou

Aiding Decisions with Multiple Criteria; Kluwer Academic Publishers, 2002. p. 23 - 42.

2000

Journal Articles

Variations on the theorem of Birkhoff-von Neumann and extensions

D. de Werra

Electronic Notes in Discrete Mathematics. 2000. DOI : 10.1016/S1571-0653(05)80135-0.

Feasible edge colorings of trees with cardinality constraints

D. de WerraA. HertzD. KoblerN. V. R. Mahadev

Discrete Mathematics. 2000. DOI : 10.1016/S0012-365X(00)00006-6.

1999

Journal Articles

Restricted graph coloring: some mathematical programming models

D. de Werra

CRM Processings & Lectures Notes. 1999.

On perfectness of sums of graphs

D. de WerraA. Hertz

Discrete Mathematics. 1999. DOI : 10.1016/S0012-365X(98)00168-X.

On a graph-theoretical model for cyclic register allocation

D. de WerraC. EisenbeisS. LelaitB. Marmol

Discrete Applied Mathematics. 1999. DOI : 10.1016/S0166-218X(99)00105-5.

On a multiconstrained model for chromatic scheduling

D. de Werra

Discrete Applied Mathematics. 1999. DOI : 10.1016/S0166-218X(99)00019-0.

On some properties of DNA graphs

J. BlazewiczA. HertzD. KoblerD. de Werra

Discrete Applied Mathematics. 1999. DOI : 10.1016/S0166-218X(99)00109-2.

Book Chapters

Restricted graph coloring: some mathematical programming models

D. de Werra

CRM Processings & Lecture Notes; 1999. p. 135 - 148.

1997

Journal Articles

What is my objective function?

D. de Werra

European Journal of Operational Research. 1997. DOI : 10.1016/s0377-2217(96)00393-1.

Mixed graphs colorings

P. HansenJ. KuplinskyD. de Werra

Mathematical Methods of Operations Research. 1997. DOI : 10.1007/BF01194253.

The combinatorics of timetabling

D. de Werra

European Journal of Operational Research. 1997. DOI : 10.1016/S0377-2217(96)00111-7.

Preassignment requirements in chromatic scheduling

D. de WerraN. V. R. Mahadev

Discrete Applied Mathematics. 1997. DOI : 10.1016/S0166-218X(97)82776-X.

Restricted colorings models for timetabling

D. de Werra

Discrete Mathematics. 1997. DOI : 10.1016/S0012-365X(96)00208-7.

Conference Papers

Nesticity

P. HansenD. de Werra

1997. DIMACS Workshop, November 13-15, 1996. p. 225 - 232. DOI : 10.1090/dimacs/037/14.

Reviews

Lectures on mathematical programming ismp97. Preface

T. LieblingD. de Werra

Mathematical Programming. 1997. DOI : 10.1007/bf02614307.

Book Chapters

Tabu Search

A. HertzE. TaillardD. de Werra

Local search in combinatorial optimization; N.Y.: John Wiley & Sons Ltd, 1997. p. 121 - 136.

1996

Journal Articles

Restrictions and pre-assignments in preemptive open shop scheduling

N. V. R. MahadevU. N. PeledD. de WerraA. J. Hoffman

Discrete Applied Mathematics. 1996. DOI : 10.1016/0166-218X(95)00055-V.

Deadline scheduling of multiprocessor tasks

J. BlazewiczM. DrozdowskiD. de WerraJ. Weglarz

Discrete Applied Mathematics. 1996. DOI : 10.1016/0166-218X(95)00020-R.

Open shop scheduling with some additional constraints

D. de WerraJ. Erschler

Graphs and Combinatorics. 1996. DOI : 10.1007/BF01858447.

Book Chapters

Some combinatorial models for course scheduling

D. de Werra

Practice and Theory of Automated Timetabling. PATAT 1995; Springer Verlag, 1996. p. 296 - 308.

1995

Journal Articles

A chromatic scheduling model with costs

D. de WerraF. GloverE. A. Silver

IISE Transactions. 1995. DOI : 10.1080/07408179508936730.

Theses

Méthodes d'optimisation combinatoire pour des problèmes de graphes

N. Dubois

Lausanne, EPFL, 1995. DOI : 10.5075/epfl-thesis-1315.

Heuristiken für kombinatorische Optimierung und semantische Bildinhaltserkennung mit Techniken der künstlichen Intelligenz

A. Rogger

Lausanne, EPFL, 1995. DOI : 10.5075/epfl-thesis-1333.

Book Chapters

Some graph coloring models for cyclic scheduling

P. SolotD. de Werra

Scheduling Theory and its Applications; N.Y.: John Wiley & Sons Ltd, 1995. p. 227 - 239.

1994

Journal Articles

Scheduling Periodic Jobs Compactly Within A Fixed Time Period In Open Shops

D. de WerraN. V. R. MahadevP. Solot

INFOR: Information Systems and Operational Research. 1994. DOI : 10.1080/03155986.1994.11732242.

Scheduling periodic jobs compacly within a fixed time period in open shops

D. de WerraN. V. R. MahadevP. Solot

INFOR: Information Systems and Operational Research. 1994.

Chordless paths, odd holes and kernels in graphs without m-obstructions

F. GavrilV. Toledano LaredoD. de Werra

Journal of Algorithms. 1994. DOI : 10.1006/jagm.1994.1031.

A sufficient condition to equitable edge colorings of simple graphs

A. J. W. HiltonD. de Werra

Discrete Mathematics. 1994. DOI : 10.1016/0012-365X(94)90112-0.

On an optimization problem occurring in FMMs: a hypergraph theoretical formulation

D. de Werra

Discrete Applied Mathematics. 1994. DOI : 10.1016/0166-218X(94)90002-7.

Extensions of colorings models for scheduling purposes

D. de Werra

European Journal of Operational Research. 1994. DOI : 10.1016/0377-2217(96)00013-6.

Scheduling independent multi processor tasks on a uniform k-processor system

J. BlazewiczM. DrozdowskiG. SchmidtD. de Werra

Parallel computing. 1994. DOI : 10.1016/0167-8191(94)90110-4.

A discrete model for studying existence and uniqueness of solution sin non linear resistive circuits

M. HaslerC. MarthyA. OberlinD. de Werra

Discrete Applied Mathematics. 1994. DOI : 10.1016/0166-218X(92)00152-C.

A review of combinatorial problems arising in feed forward neural network design

E. AmaldiE. MayorazD. de Werra

Discrete Applied Mathematics. 1994. DOI : 10.1016/0166-218X(92)00184-N.

Chromatic scheduling and frequency assignment

D. de WerraY. Gay

Discrete Applied Mathematics. 1994. DOI : 10.1016/0166-218X(94)90207-0.

Non preemptive open shop with restricted processing times

E. AmaldiO. CepekM. VlachD. de Werra

Zeitschrift für Operations Research. 1994. DOI : 10.1007/BF01415583.

Conference Papers

Preassignments in Chromatic Scheduling

D. de Werra

1994. 18th Symposium on Operations Research (1993), Cologne, 1993-09-01 - 1993-09-03. p. 526 - 528. DOI : 10.1007/978-3-642-46955-8_134.

Theses

From finding maximum feasible subsystems of linear systems to feedforward neural network design

E. Amaldi

Lausanne, EPFL, 1994. DOI : 10.5075/epfl-thesis-1282.

1993

Journal Articles

The cyclic compact open-shop scheduling problem

N. V. R. MahadevP. SolotD. de Werra

Discrete Mathematics. 1993. DOI : 10.1016/0012-365X(93)90171-O.

On the stability number of AH-free graphs

A. HertzD. de Werra

Journal of Graph Theory. 1993. DOI : 10.1002/jgt.3190170107.

Edge-chromatic scheduling with simultaneity constraints

D. de WerraN. V. R. MahadevU. N. Peled

SIAM Journal on Discrete Mathematics. 1993. DOI : 10.1137/0406048.

EPCOT : an Efficient Procedure for Coloring Optimally with Tabu search

N. DuboisD. de Werra

Computers & Mathematics with Applications. 1993. DOI : 10.1016/0898-1221(93)90279-5.

Addendum: some preemptive open shop scheduling problems with a renewable or a non renewable resource

D. de WerraJ. Blazewicz

Discrete Applied Mathematics. 1993. DOI : 10.1016/0166-218X(93)90172-K.

Graph endpoint coloring and distributed processing: A scheduling problem in distributed processing

D. de WerraP. HellT. KamedaN. KatohP. Solot  et al.

Networks. 1993. DOI : 10.1002/net.3230230203.

Some graph-theoretical models for scheduling in automated production systems

D. de WerraP. Solot

Networks. 1993. DOI : 10.1002/net.3230230803.

The burrow system of the fossorial form of the water vole (arvicola Terrestris L.)

J. P. AiroldiD. de Werra

Mammalia. 1993. DOI : 10.1515/mamm.1993.57.3.423.

Theses

Feedforward boolean neural networks with discrete weights : computational power and training

E. Mayoraz

Lausanne, EPFL, 1993. DOI : 10.5075/epfl-thesis-1157.

Elaboration de tournées de véhicules sous contraintes d'accessibilité

F. J. Semet

Lausanne, EPFL, 1993. DOI : 10.5075/epfl-thesis-1163.

Recherches itératives dirigées parallèles

E. D. Taillard

Lausanne, EPFL, 1993. DOI : 10.5075/epfl-thesis-1153.

1992

Journal Articles

Discrete Applied Mathematics Volume 35, Issue 3, 6 March 1992, Pages 175-176. Foreword

D. de WerraA. Hertz

Discrete Applied Mathematics. 1992. DOI : 10.1016/0166-218x(92)90242-3.

Cylindrical open shop scheduling: some solvable cases

N. V. R. MahadevP. SolotD. de Werra

Vishwa International Journal of Graph Theory. 1992.

Basic ideas of Tabu search with an application to traveling salesman and quadratic assignment

C. N. FiechterA. RoggerD. de Werra

Ricerca Operativa. 1992.

Some preemptive open shop scheduling problems with a renewable or a nonrenewable resource

D. de WerraJ. Blazewicz

Discrete Applied Mathematics. 1992. DOI : 10.1016/0166-218X(92)90245-6.

Reviews

Greenberg, H. J., Glover, E: Annals of OR, Vol 21: "Linkages with Artificial Intelligence" (Basel: J. C. Baltzer 1989). [Buchbesprechung]

D. de Werra

Operations-Research-Spektrum. 1992. DOI : 10.1007/bf01783520.

1991

Journal Articles

Idendifying mythological scenes with artificial intelligence

A. OberlinA. RoggerD. de WerraC. Bron-PuryF. Viret-Bernal  et al.

Science and Archeology. 1991.

Compact cylindrical chromatic scheduling

D. de WerraP. Solot

SIAM Journal on Discrete Mathmematics. 1991. DOI : 10.1137/0404046.

A preemptive open shop scheduling problem with one resource

D. de WerraJ. BlazewiczW. Kubiak

Operations Research Letters. 1991. DOI : 10.1016/0167-6377(91)90080-9.

On the use of augmenting chains in chain packings

D. de WerraF. S. Roberts

Discrete Applied Mathematics. 1991. DOI : 10.1016/0166-218X(91)90039-Y.

A convoy scheduling problem

J. BovetC. ConstantinD. de Werra

Discrete Applied Mathematics. 1991. DOI : 10.1016/0166-218X(91)90009-L.

Loading problems with tool management in flexible manufacturing systems: a few integer programming models

D. de WerraM. Widmer

International Journal of Flexible Manufacturing Systems. 1991. DOI : 10.1007/BF00167526.

Theses

Nouvelles approches mathématiques des problèmes de conception et de pilotage des ateliers flexibles

P. Solot

Lausanne, EPFL, 1991. DOI : 10.5075/epfl-thesis-975.

Book Chapters

Graph coloring models for scheduling in automated production systems

D. de WerraP. Solot

Proceedings of the second conference of the Association of Asian-Pacific Operational Research Societies APORS; Peking University Press, 1991. p. 26 - 34.

1990

Journal Articles

Recognition of a class of unimodular functions

M. CochandB. SimeoneD. de Werra

Discrete Applied Mathematics. 1990. DOI : 10.1016/0166-218X(90)90147-5.

Scheduling independent two-processor tasks on a uniform duo-processor system

J. BlazewiczM. DrozdowskiG. SchmidtD. de Werra

Discrete Applied Mathematics. 1990. DOI : 10.1016/0166-218X(90)90090-Y.

A note on SS/TDMA, satellite communication

D. de Werra

Linear Algebra and its Applications. 1990. DOI : 10.1016/0024-3795(90)90116-T.

Almost nonpreemptive schedules

D. de Werra

Annals of Operations Research. 1990. DOI : 10.1007/BF02248592.

The Tabu search metaheuristic: how we used it

A. HertzD. de Werra

Annals of Mathematics and Artificial Intelligence. 1990. DOI : 10.1007/BF01531073.

A constrained sports scheduling problem

D. de WerraL. Jacot-DecombesP. Masson

Discrete Applied Mathematics. 1990. DOI : 10.1016/0166-218X(90)90019-9.

TABARIS: an exact algorithm based on Tabu search for finding a maximum independent set in a graph

C. FridenA. HertzD. de Werra

Computers and Operations Research. 1990. DOI : 10.1016/0305-0548(90)90048-C.

Reviews

A. Gibbons and W. Rytter "Efficient parallel algorithms" (Cambridge University Press, Cambridge, 1988)

D. de Werra

European Journal of Operational Research. 1990. DOI : 10.1016/0377-2217(90)90254-9.

Theses

Sur quelques problèmes combinatoires relatifs à l'ordonnancement

M. Cochand

Lausanne, EPFL, 1990. DOI : 10.5075/epfl-thesis-897.

Modèles mathématiques pour une gestion efficace des ateliers flexibles

M. Widmer

Lausanne, EPFL, 1990. DOI : 10.5075/epfl-thesis-839.

1989

Journal Articles

Tabu search techniques - A tutorial and an application to neural networks

D. de WerraA. Hertz

OR Spektrum. 1989. DOI : 10.1007/BF01720782.

Connected sequential colorings

A. HertzD. de Werra

Discrete Mathematics. 1989. DOI : 10.1016/0012-365X(89)90197-0.

Tabu search: a tutorial and an application to neural networks

D. de WerraA. Hertz

OR Spektrum. 1989.

An interactive system for constructing timetables on a PC

N. ChabalD. de Werra

European Journal of Operational Research. 1989. DOI : 10.1016/0377-2217(89)90269-5.

Preemptive scheduling with staircase and piecewise linear resource availability

M. CochandD. de WerraR. Slowinski

Zeitschrift für Operations Research. 1989. DOI : 10.1007/BF01416077.

Discrete Mathematics Volume 74, Issues 1–2, 1989. Foreword

A. HertzD. de Werra

Discrete Mathematics. 1989. DOI : 10.1016/0012-365x(89)90192-1.

Paths, chains and antipaths

D. de WerraC. Pasche

Networks. 1989. DOI : 10.1002/net.3230190109.

STABULUS: a technique for finding stable sets in large graphs with tabu search

C. FridenA. HertzD. de Werra

Computing. 1989. DOI : 10.1007/BF02243141.

Generalized edge packings

D. de Werra

Mathematical Programming. 1989. DOI : 10.1007/BF01587091.

Odd path packings

W. PulleyblankD. de Werra

European Journal of Operational Research. 1989. DOI : 10.1016/S0195-6698(89)80075-7.

Conference Papers

Variations on matchings

D. de WerraF. S. Roberts

1989. 17th DGOR Annual Meeting, Berlin, 1988-09-13 - 1988-09-16. DOI : 10.1007/978-3-642-74862-2_50.

Theses

La coloration des sommets d'un graphe et son application à la confection d'horaires

A. Hertz

Lausanne, EPFL, 1989. DOI : 10.5075/epfl-thesis-785.

Book Chapters

Heuristics for graph coloring

D. de Werra

Computational graph theory; Springer Verlag NY, 1989. p. 171 - 185.

Packing independent sets and transversals

D. de Werra

Combinatorics and graph theory; Warsaw: Banach Center Publications, 1989. p. 233 - 240.

Apprentissage dans les réseaux de Hopfield

E. AmaldiE. MayorazA. HertzD. de Werra

Comptes rendus des journées d'électronique; Presses Polytechniques Romandes, 1989. p. 77 - 85.

Graph-theoretical models for preemptive scheduling

D. de Werra

Advances in Project Scheduling; Amsterdam: Elsevier, 1989. p. 171 - 185.

1988

Journal Articles

On the two-phase method for preemptive scheduling

D. de Werra

European Journal of Operational Research. 1988. DOI : 10.1016/0377-2217(88)90332-3.

On randomized stopping points and perfect graphs

R. C. DalangL. E. J. TrotterD. de Werra

Journal of Combinatorial Theory, Series B. 1988. DOI : 10.1016/0095-8956(88)90076-7.

Perfectly orderable graphs are quasi-parity graphs

A. HertzD. de Werra

Discrete Mathematics. 1988. DOI : 10.1016/0012-365X(88)90047-7.

Consecutive colorings of graphs

D. de WerraA. Hertz

Zeitschrift für Operations Research. 1988. DOI : 10.1007/BF01920567.

From linear separability to unimodality: a hierarchy of pseudo-boolean functions

P. HammerB. SimeoneT. M. LieblingD. de Werra

SIAM Journal on Discrete Mathematics. 1988. DOI : 10.1137/0401019.

Some models of graphs for scheduling sports competitions

D. de Werra

Discrete Applied Mathematics. 1988. DOI : 10.1016/0166-218X(88)90033-9.

1987

Journal Articles

Design and operation of flexible manufacturing systems : the kingdom of heuristic methods

D. de Werra

RAIRO - Operations Research. 1987. DOI : 10.1051/ro/1987210403651.

Design and operation of flexible manufacturing systems: the kingdom of heuristics

D. de Werra

Revue française d'Automatique, d'Informatique et de Recherche Opérationnelle. 1987.

Using tabu search techniques for graph coloring

A. HertzD. de Werra

Computing. 1987. DOI : 10.1007/BF02239976.

Four classes of perfectly orderable graphs

V. ChvatalC. T. HoàngN. V. R. MahadevD. de Werra

Journal of Graph Theory. 1987. DOI : 10.1002/jgt.3190110405.

Network simplex method applied to AC load-flow calculation

J. BarrasS. AlecC. PascheP. ChamorelA. J. Germond  et al.

IEEE Transactions on Power Systems. 1987. DOI : 10.1109/TPWRS.1987.4335100.

Some experiments with simulated annealing

M. ChamsA. HertzD. de Werra

European Journal of Operational Research. 1987. DOI : 10.1016/S0377-2217(87)80148-0.

Partitions into odd chains

D. de Werra

Mathematical Programming. 1987. DOI : 10.1007/BF02591682.

Reviews

S.K. Bhatnagar "Network analysis techniques" (Wiley, New Delhi, 1986)

D. de Werra

European Journal of Operational Research. 1987. DOI : 10.1016/0377-2217(87)90286-4.

Theses

Optimisation convexe dans les réseaux avec applications au trafic routier et à l'énergie électrique

C. Pasche

Lausanne, EPFL, 1987. DOI : 10.5075/epfl-thesis-669.

1986

Journal Articles

Node covering with odd chains

D. de Werra

Journal of Graph Theory. 1986. DOI : 10.1002/jgt.3190100206.

Generalized neighbourhoods and a class of perfectly orderable graphs

M. CochandD. de Werra

Discrete Applied Mathematics. 1986. DOI : 10.1016/0166-218X(86)90043-0.

Variations on the integral decomposition property

D. de Werra

Mathematical Programming Study. 1986.

A note on superbrittle graphs

N. V. R. MahadevM. PreissmannD. de Werra

Discrete Mathematics. 1986. DOI : 10.1016/0012-365X(86)90097-X.

Timetabling problems : should they be canonical ?

D. de WerraC. PascheA. Petter

INFOR: Information Systems and Operational Research. 1986.

Reviews

J. Koene "Minimal cost flow in processing networks: A primal approach" : CWI Tract 4 (Amsterdam, 1983)

D. de Werra

European Journal of Operational Research. 1986. DOI : 10.1016/0377-2217(86)90075-5.

Alan Gibbons: Algorithmic graph theory

D. de Werra

European Journal of Operational Research. 1986. DOI : 10.1016/0377-2217(86)90177-3.

1985

Journal Articles

The struction of a graph: Application toCN-free graphs

P. L. HammerN. V. R. MahadevD. de Werra

Combinatorica. 1985. DOI : 10.1007/bf02579377.

Threshold characterization of graphs with Dilworth number two

C. BenzakenP. L. HammerD. de Werra

Journal of Graph Theory. 1985. DOI : 10.1002/jgt.3190090207.

An introduction to timetabling

D. de Werra

European Journal of Operational Research. 1985. DOI : 10.1016/0377-2217(85)90167-5.

The struction of a graph : application to CN-free graphs, N.V. R. Mahadev

P. L. HammerD. de Werra

Combinatorica. 1985.

Graphs, hypergraphs and timetabling

D. de Werra

Methods Operational Research (Verlag A. Hain, Königstein). 1985.

Some uses of hypergraphs in timetabling

D. de Werra

Asia-Pacific Journal of Operational Research. 1985.

On split graphs of Dilworth number 2

C. BenzakenP. L. HammerD. de Werra

Discrete Mathematics. 1985. DOI : 10.1016/0012-365X(85)90040-8.

A note on strong perfectness of graphs

M. PreissmannD. de Werra

Mathematical Programming. 1985. DOI : 10.1007/BF02591953.

Stability in CAN-free graphs

P. L. HammerN. V. R. MahadevD. de Werra

Journal of Combinatorial Theory. 1985. DOI : 10.1016/0095-8956(85)90089-9.

On the multiplication of divisions

D. de Werra

Networks. 1985. DOI : 10.1002/net.3230150110.

Book Chapters

Graphs, networks and applications

D. de Werra

Further developments in operational research; Pergamon Press Oxford, 1985. p. 76 - 95.

Graphs, hypergraphs and timetabling

D. de Werra

Methods Operational Research; Königstein: Verlag A. Hain, 1985. p. 201 - 215.

1984

Journal Articles

Variation on a theorem of König

D. de Werra

Discrete Mathematics. 1984. DOI : 10.1016/0012-365X(84)90015-3.

Balanced optimisation problems

S. MartelloW. PulleyblankP. TothD. de Werra

Operations Research Letters. 1984. DOI : 10.1016/0167-6377(84)90061-0.

Preemptive scheduling, linear programming and network flows

D. de Werra

SIAM Journal on Algebraic and Discrete Methods. 1984. DOI : 10.1137/0605003.

On some properties of the struction of a graph

D. de Werra

SIAM Journal on Algebraic and Discrete Methods. 1984. DOI : 10.1137/0605025.

A decomposition property of polyhedra

D. de Werra

Mathematical Programming. 1984. DOI : 10.1007/BF02591932.

Conference Papers

Pseudo-Boolean functions and stability of graphs

C. EbeneggerP. L. HammerD. de Werra

1984. Workshop on Algebraic Structures in Operations Research. p. 83 - 98. DOI : 10.1016/S0304-0208(08)72955-4.

Theses

Elaboration de systèmes informatisés pour l'organisation de tournées de distribution

J. Bovet

Lausanne, EPFL, 1984. DOI : 10.5075/epfl-thesis-539.

Book Chapters

Some min-max formulations for partitioning problems in graphs and hypergraphs

D. de Werra

Graphs and hypergraphs, DGOR Operations Research Proceedings; Springer Verlag, 1984. p. 269 - 273.

1983

Conference Papers

On the use of bichromatic interchanges

D. de Werra

1983. International Colloquium on Graph Theory and Combinatorics, Marseille–Luminy. p. 639 - 646. DOI : 10.1016/S0304-0208(08)73444-3.

Book Chapters

On the fuzzy faces of the COP domain

D. de Werra

Methods operational research; Hain, Hastein: Althenäum, 1983. p. 213 - 216.

1982

Journal Articles

Some experiments with a timetabling system

R. OstermannD. de Werra

OR Spektrum. 1982.

Chromatic optimisation : limitations, objectives, uses, references

J. KrarupD. de Werra

European Journal of Operational Research. 1982. DOI : 10.1016/S0377-2217(82)80002-7.

Obstructions for regular colorings

D. de Werra

Journal of Combinatorial Theory B. 1982. DOI : 10.1016/0095-8956(82)90008-9.

Minimizing irregularities in sports schedules using graph theory

D. de Werra

Discrete Applied Mathematics. 1982. DOI : 10.1016/0166-218X(82)90042-7.

Reviews

D. Klingman and J.M. Mulvey (Eds.) "Network models and associated applications" (Vol. 15 in: Mathematical Programming Studies. - North-Holland, Amsterdam, 1981)

D. de Werra

European Journal of Operational Research. 1982. DOI : 10.1016/0377-2217(82)90233-8.

J.L. Kennington and R.V. Helgason "Algorithms for network programming" (Wiley, New York, 1980)

D. de Werra

European Journal of Operational Research. 1982. DOI : 10.1016/0377-2217(82)90081-9.

1981

Journal Articles

Remarks on the requirement matrix of school timetable problems and regular embeddings of graphs

D. de Werra

European Journal of Operational Research. 1981. DOI : 10.1016/0377-2217(81)90233-2.

Remarks on the requirement matrix of school timetable problems

D. de Werra

European Journal of Operational Research. 1981. DOI : 10.1016/0377-2217(81)90247-2.

On the existence of generalized good and equitable colorings

D. de Werra

Journal of Graph Theory. 1981. DOI : 10.1002/jgt.3190050306.

On some characterisations of totally unimodular matrices

D. de Werra

Mathematical Programming. 1981. DOI : 10.1007/BF01589329.

Book Chapters

Scheduling in Sports

D. de Werra

Studies on graphs and integer programming; North Holland: Annals of Discrete Mathematics, 1981. p. 381 - 395.

1980

Journal Articles

A tutorial on heuristic methods

E. A. SilverR. V. V. VidalD. de Werra

European Journal of Operational Research. 1980. DOI : 10.1016/0377-2217(80)90084-3.

Geography, games and graphs

D. de Werra

Discrete Applied Mathematics. 1980. DOI : 10.1016/0166-218X(80)90028-1.

Reviews

Schrijver, A. (Ed.): Packing and Covering in Combinatorics (Amsterdam: Mathematisch Centrum 1979)

D. de Werra

Operations-Research-Spektrum. 1980. DOI : 10.1007/bf01719342.

Book Chapters

Some partitioning problems for graphs and hypergraphs

D. de Werra

Proceedings V Symposium on Operations Research; 1980. p. 291 - 293.

Fantaisies chromatiques sur diverses partitions

D. de Werra

Regards sur la théorie des graphes; Presses Polytechniques Romandes, 1980. p. 217 - 226.

Network flows and chromatic scheduling

D. de Werra

Proceedings of DAPS; Uni of Copenhagen, 1980. p. 429 - 438.

Optimisation in edge-chromatic scheduling

D. de Werra

Survey of Mathematical Programming; Budapest: Akademiai Kiado, 1980. p. 379 - 382.

1979

Journal Articles

Partial compactness in chromatic scheduling

D. de Werra

Op. Res. Verfahren. 1979.

Regular and canonical colorings

D. de Werra

Discrete Mathematics. 1979. DOI : 10.1016/0012-365X(79)90165-1.

On the use of alternating chains and hypergraphs in edge colorings

D. de Werra

Journal of Graph Theory. 1979. DOI : 10.1002/jgt.3190030208.

Book Chapters

On a class of hypergraphs occurring in chromatic scheduling

D. de Werra

Cahiers du C.E.R.O.; 1979. p. 239 - 245.

1978

Journal Articles

On line perfect graphs

D. de Werra

Mathematical Programming. 1978. DOI : 10.1007/BF01609025.

Color-feasible sequences of multigraphs

D. de Werra

Networks. 1978. DOI : 10.1002/net.3230080105.

Some comments on a note about timetabling

D. de Werra

INFOR: Information Systems and Operational Research. 1978.

Book Chapters

Color-feasible sequences in almost bipartite graphs

D. de Werra

Problèmes combinatoires et théorie des graphes; Paris: Orsay - Editions CNRS, 1978. p. 427 - 429.

1977

Journal Articles

Multigraphs with quasi-weak odd cycles

D. de Werra

Journal of Combinatorial Theory, Series B. 1977. DOI : 10.1016/0095-8956(77)90058-2.

Uniqueness of colorings

D. de Werra

Archiv der Mathematik. 1977.

Compactness and balancing in scheduling

D. BrélazV. NicolierD. de Werra

Zeitschrift für Operations Research. 1977. DOI : 10.1007/BF01918457.

Theses

Le problème de la répartition proportionnelle

J.-P. Leyvraz

Lausanne, EPFL, 1977. DOI : 10.5075/epfl-thesis-270.

Book Chapters

Modélisation mathématique du recyclage des boues d'épuration comme engrais pour l'agriculture

J. C. RochatD. de Werra

Modélisation et maîtrise des systèmes techniques, économiques, sociaux, Actes du Congrès AFCET; Paris: Hommes et Techniques, 1977. p. 519 - 526.

Progressive balancing in chromatic scheduling

D. de Werra

Proceedings of Combinatorial Programming; Uni. of Liverpool, 1977. p. 105 - 113.

On a multi-period assignment problem

D. de Werra

Advances in operations research; North Holland, Amsterdam: Physica-Verlag, Würzburg, 1977. p. 129 - 134.

Some coloring techniques

D. de Werra

Studies in Integer Programming; 1977. p. 179 - 184.

1976

Journal Articles

A note on a paper by D. Seinsche

J. C. ArdittiD. de Werra

Journal of Combinatorial Theory, Series B. 1976. DOI : 10.1016/0095-8956(76)90033-2.

An extension of bipartite multigraphs

D. de Werra

Discrete Mathematics. 1976. DOI : 10.1016/0012-365X(76)90056-X.

Some remarks on good colorations

D. de Werra

Journal of Combinatorial Theory, Series B. 1976. DOI : 10.1016/0095-8956(76)90027-7.

Book Chapters

Everything you always wanted to know about S. Ex

D. de Werra

Proceedings in Operation Research; Würzburg: Physica-Verlag, 1976. p. 104 - 107.

Un modèle pour l'utilisation dans l'agriculture des boues produites par les stations d'épuration

P. BeckJ. C. RochatD. de Werra

Proceedings in Operation Research; Würzburg: Physica-Verlag, 1976.

1975

Journal Articles

On a particular conference scheduling problem

D. de Werra

INFOR: Information Systems and Operational Research. 1975.

Book Chapters

How to color a graph

D. de Werra

Combinatorial programming : methods and applications; Dordrecht, Netherlands: D. Reidel Publ. Co., 1975. p. 305 - 325.

On good and equitable colorings

D. de Werra

Cahiers du C.E.R.O.; 1975. p. 417 - 426.

A few remarks on chromatic scheduling

D. de Werra

Combinatorial programming : methods and applications; Dordrecht, Netherlands: D. Reidel Publ. Co., 1975. p. 337 - 342.

1974

Journal Articles

A note on graph coloring

D. de Werra

Revue française d'automatique, d'informatique et de recherche opérationnelle. 1974.

Some results in chromatic scheduling

D. de Werra

Zeitschrift für Op. Res.. 1974. DOI : 10.1007/BF02026597.

Book Chapters

Partitions of graphs into coverings and hypergraphs into transversals

D. de Werra

Commentarii mathematici Helvetici; 1974. p. 175 - 178.

1972

Journal Articles

Decomposition of bipartite multigraphs into matchings

D. de Werra

Zeitschrift für Op. Res.. 1972. DOI : 10.1007/BF01963619.

1971

Journal Articles

Balanced schedules

D. de Werra

INFOR: Information Systems and Operational Research. 1971. DOI : 10.1080/03155986.1971.11731479.

Construction of school timetables by flow methods

D. de Werra

INFOR: Information Systems and Operational Research. 1971.

A property of minimum concave cost flows in capacitated networks

M. FlorianM. Rossin-ArthiatD. de Werra

INFOR: Information Systems and Operational Research. 1971. DOI : 10.1080/03155986.1971.11731485.

Investigations on an edge coloring problem

D. de Werra

Discrete Mathematics. 1971. DOI : 10.1016/0012-365X(71)90022-7.

Equitable colorations of graphs

D. de Werra

Revue française d'informatique et de recherche opérationnelle. 1971. DOI : 10.1051/m2an/197105R300031.

1970

Journal Articles

On some combinatorial problems arising in scheduling

D. de Werra

CORS Journal. 1970.

1969

Book Chapters

Résolution de problèmes d'horaires par la théorie des graphes

D. de Werra

EPFL; 1969.

Teaching & PhD

Past EPFL PhD Students

Andreas Rogger, David Schindl, Ivo Blöchliger, Tinaz Ekim, Bernard Ries, Benjamin Leroy-Beaulieu

Past EPFL PhD Students as codirector

Nicolas Zufferey