Ladders for Travelling Salesmen

Abstract
We introduce a new class of valid inequalities for the symmetric travelling salesmanpolytope. The family is not of the common handle-tooth variety. We showthat these inequalities are all facet-inducing and have Chv'atal rank 2.Key words: polyhedra, facets, travelling salesman problemAMS 1980 subject classification. Primary: 90C08Copyright (C) by the Society for Industrial and Applied Mathematics, in SIAM Journal on Optimization,5 (1995), pp. 408--420. Research partially supported by...