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Number of items: **36**.

Appa, Gautam, Euler, R., Kouvela, Anastasia, Magos, D. and Mourtos, I.
(2016)
*On the completability of incomplete orthogonal Latin rectangles.*
Discrete Mathematics.
ISSN 0012-365X

Magos, Dimitris, Mourtos, Ioannis and Appa, Gautam
(2012)
*A polyhedral approach to the alldifferent system.*
Mathematical Programming, 132 (1-2).
pp. 209-260.
ISSN 0025-5610

Pitsoulis, Leonidas, Papalamprou, Konstantinos, Appa, Gautam and Kotnyek, Balázs
(2009)
*On the representability of totally unimodular matrices on bidirected graphs.*
Discrete Mathematics, 309 (16).
pp. 5024-5042.
ISSN 0012-365X

Appa, Gautam, Kotnyek, Balázs, Papalamprou, Konstantinos and Pitsoulis, Leonidas
(2007)
*Optimization with binet matrices.*
Operations Research Letters, 35 (3).
pp. 345-352.
ISSN 0167-6377

Appa, Gautam and Williams, H. Paul
(2006)
*A new framework for the solution of DEA models.*
European Journal of Operational Research, 172 (2).
pp. 604-615.
ISSN 0377-2217

Appa, Gautam, Magos, D. and Mourtos, Ioannis
(2006)
*A new class of facets for the Latin square polytope.*
Discrete Applied Mathematics, 154 (6).
pp. 900-911.
ISSN 0166-218X

Appa, Gautam, Magos, D., Mourtos, Ioannis and Janssen, Jeannette
(2006)
*On the Orthogonal Latin Square polytope.*
Discrete Mathematics, 306 (2).
pp. 171-187.
ISSN 0012-365X

Appa, Gautam, Magos, D. and Mourtos, Ioannis
(2006)
*On multi-index assignment polytopes.*
Linear Algebra and Its Applications, 416 (2-3).
pp. 224-241.
ISSN 0024-3795

Appa, Gautam, Magos, D. and Mourtos, Ioannis
(2006)
*Searching for mutually orthogonal Latin squares via integer and constraint programming.*
European Journal of Operational Research, 173 (2).
pp. 519-530.
ISSN 0377-2217

Appa, Gautam and Kotnyek, Balázs
(2006)
*A bidirected generalisation of network matrices.*
Networks, 47 (4).
pp. 185-198.
ISSN 1097-0037

Appa, Gautam, Becker, Kai Helge and Papadaki, Katerina
(2006)
*A brief encounter with sudoku.*
LSE Magazine.
p. 20.
ISSN 0023-639X

Appa, Gautam, Magos, D. and Mourtos, Ioannis
(2005)
*On the system of two all_different predicates.*
Information Processing Letters, 94 (3).
pp. 99-105.
ISSN 0020-0190

Appa, Gautam, Magos, D. and Mourtos, Ioannis
(2004)
*An LP-based proof for the non-existence of a pair of orthogonal Latin squares for n = 6.*
Operations Research Letters, 32 (4).
pp. 336-344.
ISSN 0167-6377

Appa, Gautam, Magos, D. and Mourtos, Ioannis
(2004)
*A branch and cut algorithm for a four-index assignment problem.*
Journal of the Operational Research Society, 55 (3).
pp. 298-307.
ISSN 0160-5682

Appa, Gautam and Kotnyek, Balázs
(2004)
*Rational and integral k-regular matrices.*
Discrete Mathematics, 275 (1-3).
pp. 1-15.
ISSN 0012-365X

Appa, Gautam, Magos, D. and Mourtos, Ioannis
(2004)
*LP relaxations of multiple all_different predicates.*
Lecture Notes in Computer Science, 3011.
pp. 364-369.
ISSN 0302-9743

Appa, Gautam
(2002)
*On the uniqueness of solutions to linear programs.*
Journal of the Operational Research Society, 53 (10).
pp. 1127-1132.
ISSN 0160-5682

Appa, Gautam and Sridharan, R.
(2000)
*OR helps poor in a controversial irrigation project.*
Interfaces, 30 (2).
pp. 13-28.
ISSN 0092-2102

Appa, Gautam and Yue, M.
(2000)
*A reply to Zhu: how useful or accurate is this alternative?*
Journal of the Operational Research Society, 51 (3).
p. 379.
ISSN 0160-5682

Appa, Gautam and Yue, M.
(1999)
*On setting scale efficient targets in DEA.*
Journal of the Operational Research Society, 50 (1).
pp. 60-69.
ISSN 0160-5682

Appa, Gautam, Magos, D., Mourtos, Ioannis and Pitsulis, L.
(2006)
*Modelling for feasibility - the case of mutually orthogonal Latin squares problem.*
In: Appa, Gautam, Pitsoulis, Leonidas and Williams, H. Paul, (eds.)
Handbook on Modelling for Discrete Optimization.
International series in operations research & management science (88).
Springer, New York, US, pp. 103-128.
ISBN 0387329412

Appa, Gautam, Argyris, N. and Williams, H. Paul
(2006)
*A methodology for cross-evaluation in DEA.*
Operational Research working papers (LSEOR 06.81).
Operational Research Group, Department of Management, London School of Economics and Political Science, London, UK.
ISBN 0753017032

Appa, Gautam and Argyris, Nikolaos
(2006)
*On regions of stability for preserving efficiency classifications in data envelopment analysis.*
Operational Research Group working papers (LSEOR 06.87).
Operational Research Group, Department of Management, London, UK.
(Submitted)

Appa, Gautam, Argyris, Nikolaos and Parthasarathy, S.
(2006)
*A faster algorithm for data envelopment analysis.*
Operational Research Group working papers (LSEOR 06.84).
Operational Research Group, Department of Management, London, UK.
(Submitted)

Appa, Gautam, Magos, D. and Mourtos, Ioannis
(2005)
*On the system of two all_different predicates.*
Operational Research working papers (LSEOR 05.74).
Department of Operational Research, London School of Economics and Political Science, London, UK.
ISBN 0753016966

Appa, Gautam and Kotnyek, Balázs
(2003)
*Optimization with binet matrices.*
Operational Research working papers (LSEOR 03.59).
Department of Operational Research, London School of Economics and Political Science, London, UK.

Appa, Gautam, Mourtos, Ioannis and Magos, D.
(2002)
*Integrating constraint and integer programming for the orthogonal Latin squares problem.*
Operational Research working papers (LSEOR 01.47).
Department of Operational Research, London School of Economics and Political Science, London, UK.

Appa, Gautam, Mourtos, Ioannis and Magos, D.
(2002)
*An LP-based proof of the non-existence of a pair of Orthogonal Latin Squares for n = 6.*
Operational Research working papers (LSEOR 02.51).
Department of Operational Research, London School of Economics and Political Science, London, UK.

Appa, Gautam and Williams, H. Paul
(2002)
*A formula for the solution of DEA models.*
Operational Research working papers (LSEOR 02.49).
Department of Operational Research, London School of Economics and Political Science, London, UK.

Appa, Gautam
(2000)
*Is my solution unique? On the uniqueness of solutions to linear programs.*
Operational Research working papers (LSEOR 00.33).
Department of Operational Research, London School of Economics and Political Science, London, UK.

Appa, Gautam and Yue, Ming
(1996)
*On measuring scale efficiency and setting scale efficient targets in DEA.*
Operational Research working papers (LSEOR 96.22/2).
Department of Operational Research, London School of Economics and Political Science, London, UK.

Appa, Gautam
(1994)
*Using primal-dual relationship in mixed integer programming.*
Operational Research working papers (LSEOR 94.13).
Department of Operational Research, London School of Economics and Political Science, London, UK.

Appa, Gautam and Giannikos, Ioannis
(1992)
*Using duality information from a mixed integer program to derive new and old results for the rectilinear obnoxious facility location problem.*
Operational Research working papers (LSEOR 92.2).
Department of Operational Research, London School of Economics and Political Science, London, UK.

Appa, Gautam and Sridharan, R.
(1992)
*Report on the canal affected people and the downstream impact of the Sardar Sarover projects.*
Operational Research working papers (LSEOR 92.1).
Department of Operational Research, London School of Economics and Political Science, London, UK.

Appa, Gautam
(2014)
*Gujarat’s troubling environmental record.*
*South Asia @ LSE*
(04 Apr 2014).
Blog Entry.

Appa, Gautam
(2014)
*How many ‘clean chits’ for Modi?*
*South Asia @ LSE*
(26 Mar 2014).
Blog Entry.