Kalmanson combinatorial conditions

In mathematics, the Kalmanson combinatorial conditions are a set of conditions on the distance matrix used in determining the solvability of the traveling salesman problem. These conditions apply to a special kind of cost matrix, the Kalmanson matrix, and are named after Kenneth Kalmanson.

References

• Kalmanson, Kenneth (1975), "Edgeconvex circuits and the traveling salesman problem", Canadian Journal of Mathematics 27 (5): 1000–1010, doi:10.4153/CJM-1975-104-6 .
• Klinz, Bettina (1999), "The Steiner tree problem in Kalmanson matrices and in circulant matrices", Journal of Combinatorial Optimization 3 (1): 51–58, doi:10.1023/A:1009881510868 .
• Deĭneko, V. G.; van der Veen, J. A.; Rudolf, R. (1997), "Three easy special cases of the Euclidean travelling salesman problem", RAIRO Recherche Opérationnelle 31 (4): 343–362, https://www.rairo-ro.org/articles/ro/pdf/1997/04/ro1997310403431.pdf .
• Okamoto, Yoshio (2004), "Traveling salesman games with the Monge property", Discrete Applied Mathematics 138 (3): 349–369, doi:10.1016/j.dam.2003.08.005 .
• Çela, Eranda (1998), The Quadratic Assignment Problem: Theory and Algorithms, Combinatorial Optimization, 1, Dordrecht: Kluwer Academic Publishers, ISBN 0-7923-4878-8 .