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JCT
2008
14 years 9 months ago
2008
A transitive decomposition of a graph is a partition of the edge set together with a group of automorphisms which transitively permutes the parts. In this paper we determine all t...
JCT
2008
14 years 9 months ago
2008
ing subgroups of Coxeter groups (Extended Abstract) Francesco Brenti, Victor Reiner, and Yuval Roichman Abstract. We explore combinatorial consequences of a simple presentation due...
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JCT
2008
14 years 9 months ago
2008
Let s = (s1, s2, . . . , sm) and t = (t1, t2, . . . , tn) be vectors of non-negative integers with m i=1 si = n j=1 tj. Let B(s, t) be the number of m
JCT
2008
14 years 9 months ago
2008
Let T be an unrooted tree. The chromatic symmetric function XT , introduced by Stanley, is a sum of monomial symmetric functions corresponding to proper colorings of T . The subtre...
JCT
2008
14 years 9 months ago
2008
The Jones polynomial of an alternating link is a certain specialization of the Tutte polynomial of the (planar) checkerboard graph associated to an alternating projection of the li...