A counterexample to the Hirsch Conjecture
A counterexample to the Hirsch Conjecture
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DOI:
10.4007/annals.2012.176.1.7
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发表时间:
2012-07-01
影响因子:
4.9
通讯作者:
Santos, Francisco
中科院分区:
文献类型:
--
作者:
Santos, Francisco
The Hirsch Conjecture (1957) stated that the graph of a d-dimensional polytope with n facets cannot have (combinatorial) diameter greater than n-d. That is, any two vertices of the polytope can be connected by a path of at most n - d edges.This paper presents the first counterexample to the conjecture. Our polytope has dimension 43 and 86 facets. It is obtained from a 5-dimensional polytope with 48 facets that violates a certain generalization of the d-step conjecture of Klee and Walkup.