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1

Compact formulations of the Steiner Traveling Salesman Problem and related problems

Letchford, Adam N., Nasiri, Saeideh D., Theis, Dirk Oliver

Journal:

European Journal of Operational Research

Year:

2013

Language:

english

File:

PDF, 391 KB

english, 2013

2

A new branch-and-cut algorithm for the capacitated vehicle routing problem

Jens Lysgaard, Adam N. Letchford, Richard W. Eglese

Journal:

Mathematical Programming

Year:

2004

Language:

english

File:

PDF, 203 KB

english, 2004

3

Acute Mountain Sickness (AMS) Knowledge Among High Altitude Marathon Runners Competing in the Everest Marathon

Letchford, Abigail, Paudel, Rudra, Thomas, Owen D., Booth, Adam S., Imray, Christopher H.E.

Journal:

Wilderness & Environmental Medicine

Year:

2016

Language:

english

File:

PDF, 276 KB

english, 2016

4

Analysis of upper bounds for the Pallet Loading Problem

Adam N. Letchford, André Amaral

Journal:

European Journal of Operational Research

Year:

2001

Language:

english

File:

PDF, 115 KB

english, 2001

5

Non-convex mixed-integer nonlinear programming: A survey

Samuel Burer, Adam N. Letchford

Journal:

Surveys in Operations Research and Management Science

Year:

2012

Language:

english

File:

PDF, 340 KB

english, 2012

6

The Steiner travelling salesman problem with correlated costs

Letchford, Adam N., Nasiri, Saeideh D.

Journal:

European Journal of Operational Research

Year:

2015

Language:

english

File:

PDF, 512 KB

english, 2015

7

Lower Bounds for the Minimum Linear Arrangement of a Graph

Alberto Caprara, Adam N. Letchford, Juan-José Salazar-González

Journal:

Electronic Notes in Discrete Mathematics

Year:

2010

Language:

english

File:

PDF, 186 KB

english, 2010

8

Good triangulations yield good tours

Adam N. Letchford, Nicholas A. Pearson

Journal:

Computers & Operations Research

Year:

2008

Language:

english

File:

PDF, 191 KB

english, 2008

9

On a class of metrics related to graph layout problems

Adam N. Letchford, Gerhard Reinelt, Hanna Seitz, Dirk Oliver Theis

Journal:

Linear Algebra and its Applications

Year:

2010

Language:

english

File:

PDF, 296 KB

english, 2010

10

On the separation of split cuts and related inequalities

Alberto Caprara, Adam N. Letchford

Journal:

Mathematical Programming

Year:

2003

Language:

english

File:

PDF, 135 KB

english, 2003

11

Odd Minimum Cut Sets and b -Matchings Revisited

Letchford, Adam N., Reinelt, Gerhard, Theis, Dirk Oliver

Journal:

SIAM Journal on Discrete Mathematics

Year:

2008

Language:

english

File:

PDF, 151 KB

english, 2008

12

An aggressive reduction scheme for the simple plant location problem

Letchford, Adam N., Miller, Sebastian J.

Journal:

European Journal of Operational Research

Year:

2014

Language:

english

File:

PDF, 377 KB

english, 2014

13

Iterated Chvátal--Gomory Cuts and the Geometry of Numbers

Aliev, Iskander, Letchford, Adam

Journal:

SIAM Journal on Optimization

Year:

2014

Language:

english

File:

PDF, 349 KB

english, 2014

14

On Nonconvex Quadratic Programming with Box Constraints

Burer, Samuel, Letchford, Adam N.

Journal:

SIAM Journal on Optimization

Year:

2009

Language:

english

File:

PDF, 254 KB

english, 2009

15

Stronger multi-commodity flow formulations of the Capacitated Vehicle Routing Problem

Letchford, Adam N., Salazar-González, Juan-José

Journal:

European Journal of Operational Research

Year:

2015

Language:

english

File:

PDF, 389 KB

english, 2015

16

Stronger multi-commodity flow formulations of the (capacitated) sequential ordering problem

Letchford, Adam N., Salazar-González, Juan-José

Journal:

European Journal of Operational Research

Year:

2016

Language:

english

File:

PDF, 424 KB

english, 2016

17

On the Lovász theta function and some variants

Galli, Laura, Letchford, Adam N.

Journal:

Discrete Optimization

Year:

2017

Language:

english

File:

PDF, 800 KB

english, 2017

18

New valid inequalities and facets for the Simple Plant Location Problem

Galli, Laura, Letchford, Adam N., Miller, Sebastian J.

Journal:

European Journal of Operational Research

Year:

2018

Language:

english

File:

PDF, 739 KB

english, 2018

19

The Capacitated Vehicle Routing Problem: Stronger Bounds in Pseudo-Polynomial Time

Letchford, Adam N., Salazar-González, Juan-José

Journal:

European Journal of Operational Research

Year:

2018

Language:

english

File:

PDF, 877 KB

english, 2018

20

A binarisation heuristic for non-convex quadratic programming with box constraints

Galli, Laura, Letchford, Adam N.

Journal:

Operations Research Letters

Year:

2018

Language:

english

File:

PDF, 380 KB

english, 2018

21

Facets from gadgets

Letchford, Adam N., Vu, Anh N.

Journal:

Mathematical Programming

Year:

2019

Language:

english

File:

PDF, 399 KB

english, 2019

22

A cut-and-branch algorithm for the Quadratic Knapsack Problem

Djeumou Fomeni, Franklin, Kaparis, Konstantinos, Letchford, Adam N.

Journal:

Discrete Optimization

Year:

2020

File:

PDF, 1.15 MB

2020

23

Bi-perspective functions for mixed-integer fractional programs with indicator variables

Letchford, Adam N., Ni, Qiang, Zhong, Zhaoyu

Journal:

Mathematical Programming

Year:

2020

File:

PDF, 344 KB

2020

24

The stable set problem: Clique and nodal inequalities revisited

Letchford, Adam N., Rossi, Fabrizio, Smriglio, Stefano

Journal:

Computers & Operations Research

Year:

2020

File:

PDF, 2.85 MB

2020

25

Generalized network design polyhedra

Corinne Feremans, Martine Labbé, Adam N. Letchford, Juan-José Salazar-González

Journal:

Year:

2011

Language:

english

File:

PDF, 207 KB

english, 2011

26

A fast algorithm for minimum weight odd circuits and cuts in planar graphs

Adam N. Letchford, Nicholas A. Pearson

Journal:

Operations Research Letters

Year:

2005

Language:

english

File:

PDF, 157 KB

english, 2005

27

Involvement of GSK-3 in Regulation of Murine Embryonic Stem Cell Self-Renewal Revealed by a Series of Bisindolylmaleimides

Heather K. Bone, Teresa Damiano, Stephen Bartlett, Alexis Perry, Julie Letchford, Yolanda Sanchez Ripoll, Adam S. Nelson, Melanie J. Welham

Journal:

Chemistry & Biology

Year:

2009

Language:

english

File:

PDF, 1015 KB

english, 2009

28

Exploiting sparsity in pricing routines for the capacitated arc routing problem

Adam N. Letchford, Amar Oukil

Journal:

Computers & Operations Research

Year:

2009

Language:

english

File:

PDF, 372 KB

english, 2009

29

Mixed integer programming

Jon Lee, Adam N. Letchford

Journal:

Discrete Optimization

Year:

2007

Language:

english

File:

PDF, 92 KB

english, 2007

30

Exploiting planarity in separation routines for the symmetric traveling salesman problem

Adam N. Letchford, Nicholas A. Pearson

Journal:

Discrete Optimization

Year:

2008

Language:

english

File:

PDF, 490 KB

english, 2008

31

Local and global lifted cover inequalities for the 0–1 multidimensional knapsack problem

Konstantinos Kaparis, Adam N. Letchford

Journal:

European Journal of Operational Research

Year:

2008

Language:

english

File:

PDF, 185 KB

english, 2008

32

A New Lower Bound for the Minimum Linear Arrangement of a Graph

André R.S. Amaral, Alberto Caprara, Adam N. Letchford, Juan-José Salazar-Gonzalez

Journal:

Electronic Notes in Discrete Mathematics

Year:

2008

Language:

english

File:

PDF, 230 KB

english, 2008

33

Book review

Adam N. Letchford

Journal:

Operations Research Letters

Year:

2004

Language:

english

File:

PDF, 52 KB

english, 2004

34

Small bipartite subgraph polytopes

Laura Galli, Adam N. Letchford

Journal:

Operations Research Letters

Year:

2010

Language:

english

File:

PDF, 272 KB

english, 2010

35

Strengthening Chvátal–Gomory cuts and Gomory fractional cuts

Adam N. Letchford, Andrea Lodi

Journal:

Operations Research Letters

Year:

2002

Language:

english

File:

PDF, 134 KB

english, 2002

36

A cutting plane algorithm for the General Routing Problem

Angel Corberáan, Adam N. Letchford, José María Sanchis

Journal:

Mathematical Programming

Year:

2001

Language:

english

File:

PDF, 233 KB

english, 2001

37

Primal cutting plane algorithms revisited

Adam N. Letchford, Andrea Lodi

Journal:

Mathematical Methods of Operations Research

Year:

2002

Language:

english

File:

PDF, 125 KB

english, 2002

38

Multistars, partial multistars and the capacitated vehicle routing problem

Adam N. Letchford, Richard W. Eglese, Jens Lysgaard

Journal:

Mathematical Programming

Year:

2002

Language:

english

File:

PDF, 142 KB

english, 2002

39

Binary clutter inequalities for integer programs

Adam N. Letchford

Journal:

Mathematical Programming

Year:

2003

Language:

english

File:

PDF, 213 KB

english, 2003

40

Exploring the Relationship Between Max-Cut and Stable Set Relaxations

Monia Giandomenico, Adam N. Letchford

Journal:

Mathematical Programming

Year:

2006

Language:

english

File:

PDF, 194 KB

english, 2006

41

Projection results for vehicle routing

Adam N. Letchford, Juan-José Salazar-González

Journal:

Mathematical Programming

Year:

2006

Language:

english

File:

PDF, 222 KB

english, 2006

42

An application of the Lovász–SchrijverM(K,K) operator to the stable set problem

Monia Giandomenico, Adam N. Letchford, Fabrizio Rossi, Stefano Smriglio

Journal:

Mathematical Programming

Year:

2009

Language:

english

File:

PDF, 272 KB

english, 2009

43

Separation algorithms for 0-1 knapsack polytopes

Konstantinos Kaparis, Adam N. Letchford

Journal:

Mathematical Programming

Year:

2010

Language:

english

File:

PDF, 251 KB

english, 2010

44

New techniques for cost sharing in combinatorial optimization games

Alberto Caprara, Adam N. Letchford

Journal:

Mathematical Programming

Year:

2010

Language:

english

File:

PDF, 272 KB

english, 2010

45

Binary positive semidefinite matrices and associated integer polytopes

Adam N. Letchford, Michael M. Sørensen

Journal:

Mathematical Programming

Year:

2012

Language:

english

File:

PDF, 376 KB

english, 2012

46

On the separation of maximally violated mod-kcuts

Alberto Caprara, Matteo Fischetti, Adam N. Letchford

Journal:

Mathematical Programming

Year:

2000

Language:

english

File:

PDF, 188 KB

english, 2000

47

The traveling salesman problem: a book review

Adam N. Letchford, Andrea Lodi

Journal:

4OR: A Quarterly Journal of Operations Research

Year:

2007

Language:

english

File:

PDF, 97 KB

english, 2007

48

Computing compatible tours for the symmetric traveling salesman problem

Matteo Fortini, Adam N. Letchford, Andrea Lodi, Klaus M. Wenger

Journal:

Mathematical Programming Computation

Year:

2011

Language:

english

File:

PDF, 463 KB

english, 2011

49

Preface

Dr. Alistair Clark, Pro fessor Richard W. Eglese, Dr. Adam N. Letchford, Dr. Michael B. Wright

Journal:

Discrete Applied Mathematics

Year:

2008

Language:

english

File:

PDF, 80 KB

english, 2008

50

Totally tight Chvátal–Gomory cuts

Adam N Letchford

Journal:

Operations Research Letters

Year:

2002

Language:

english

File:

PDF, 85 KB

english, 2002