Appa, Gautam

Number of items: 37.
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  • Magos, Dimitris, Mourtos, Ioannis, Appa, Gautam (2012). A polyhedral approach to the alldifferent system. Mathematical Programming, 132(1-2), 209-260. https://doi.org/10.1007/s10107-010-0390-6
  • Pitsoulis, Leonidas, Papalamprou, Konstantinos, Appa, Gautam, Kotnyek, Balázs (2009). On the representability of totally unimodular matrices on bidirected graphs. Discrete Mathematics, 309(16), 5024-5042. https://doi.org/10.1016/j.disc.2009.03.010
  • Appa, Gautam, Kotnyek, Balázs, Papalamprou, Konstantinos, Pitsoulis, Leonidas (2007). Optimization with binet matrices. Operations Research Letters, 35(3), 345-352. https://doi.org/10.1016/j.orl.2006.04.003
  • Appa, Gautam, Pitsoulis, Leonidas, Williams, H. Paul (Eds.) (2006). Handbook on modelling for discrete optimization. Springer Berlin / Heidelberg.
  • Appa, Gautam, Magos, D., Mourtos, Ioannis (2006). A new class of facets for the Latin square polytope. Discrete Applied Mathematics, 154(6), 900-911. https://doi.org/10.1016/j.dam.2005.09.014
  • Appa, Gautam, Magos, D., Mourtos, Ioannis, Janssen, Jeannette (2006). On the Orthogonal Latin Square polytope. Discrete Mathematics, 306(2), 171-187. https://doi.org/10.1016/j.disc.2005.10.020
  • Appa, Gautam, Magos, D., Mourtos, Ioannis, Pitsulis, L. (2006). Modelling for feasibility - the case of mutually orthogonal Latin squares problem. In Appa, G., Pitsoulis, L. & Williams, H. P. (Eds.), Handbook on Modelling for Discrete Optimization (pp. 103-128). Springer Berlin / Heidelberg.
  • Appa, Gautam, Magos, D., Mourtos, Ioannis (2006). On multi-index assignment polytopes. Linear Algebra and Its Applications, 416(2-3), 224-241. https://doi.org/10.1016/j.laa.2005.11.009
  • Appa, Gautam, 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.
  • Appa, Gautam, Magos, D., Mourtos, Ioannis (2006). Searching for mutually orthogonal Latin squares via integer and constraint programming. European Journal of Operational Research, 173(2), 519-530. https://doi.org/10.1016/j.ejor.2005.01.048
  • Appa, Gautam, Kotnyek, Balázs (2006). A bidirected generalisation of network matrices. Networks, 47(4), 185-198. https://doi.org/10.1002/net.20108
  • Appa, Gautam, Becker, Kai Helge, Papadaki, Katerina (2006). A brief encounter with sudoku. LSE Magazine, p. 20.
  • Appa, Gautam, Argyris, Nikolaos, Parthasarathy, S. (2006). A faster algorithm for data envelopment analysis. (Operational Research Group working papers LSEOR 06.84). Operational Research Group, Department of Management.
  • Appa, Gautam, Magos, D., Mourtos, Ioannis (2005). On the system of two all_different predicates. Information Processing Letters, 94(3), 99-105. https://doi.org/10.1016/j.ipl.2005.01.009
  • Appa, Gautam, Magos, D., 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), 336-344. https://doi.org/10.1016/j.orl.2003.10.010
  • Appa, Gautam, Magos, D., Mourtos, Ioannis (2004). A branch and cut algorithm for a four-index assignment problem. Journal of the Operational Research Society, 55(3), 298-307. https://doi.org/10.1057/palgrave.jors.2601655
  • Appa, Gautam, Kotnyek, Balázs (2004). Rational and integral k-regular matrices. Discrete Mathematics, 275(1-3), 1-15. https://doi.org/10.1016/S0012-365X(03)00095-5
  • Appa, Gautam, Magos, D., Mourtos, Ioannis (2004). LP relaxations of multiple all_different predicates. Lecture Notes in Computer Science, 3011, 364-369. https://doi.org/10.1007/b96957
  • Appa, Gautam (2002). On the uniqueness of solutions to linear programs. Journal of the Operational Research Society, 53(10), 1127-1132. https://doi.org/10.1057/palgrave.jors.2601320
  • Appa, Gautam, Mourtos, Ioannis, 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.
  • Appa, Gautam, Mourtos, Ioannis, 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.
  • 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.
  • Appa, Gautam, Sridharan, R. (2000). OR helps poor in a controversial irrigation project. Interfaces, 30(2), 13-28. https://doi.org/10.1287/inte.30.2.13.11672
  • Appa, Gautam, Yue, M. (2000). A reply to Zhu: how useful or accurate is this alternative? Journal of the Operational Research Society, 51(3), p. 379. https://doi.org/10.1057/palgrave.jors.2600894
  • Appa, Gautam, Yue, M. (1999). On setting scale efficient targets in DEA. Journal of the Operational Research Society, 50(1), 60-69. https://doi.org/10.1057/palgrave.jors.2600666
  • Appa, Gautam, 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.
  • 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.
  • Appa, Gautam, 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.
  • Appa, Gautam, 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.
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  • Appa, Gautam, Euler, R., Kouvela, Anastasia, Magos, D., Mourtos, I. (2016). On the completability of incomplete orthogonal Latin rectangles. Discrete Mathematics, https://doi.org/10.1016/j.disc.2016.02.008
  • Appa, Gautam (2014). Gujarat’s troubling environmental record.
  • Appa, Gautam (2014). How many ‘clean chits’ for Modi?
  • Appa, Gautam, Argyris, N., 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.
  • Appa, Gautam, Williams, H. Paul (2006). A new framework for the solution of DEA models. European Journal of Operational Research, 172(2), 604-615. https://doi.org/10.1016/j.ejor.2004.09.051
  • Appa, Gautam, Magos, D., 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.
  • Appa, Gautam, 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.
  • Appa, Gautam, 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.