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CAGE: Philadelphia Area Combinatorics and Alg. Geometry Seminar

Thursday, February 20, 2020 - 3:00pm

Mark Skandera

Lehigh University

Location

University of Pennsylvania

DRL 4C4

Merris and Watkins interpreted results of Littlewood to give generating functions for symmetric group characters induced from one-dimensional characters of Young subgroups.  Beginning with an n by n matrix X of formal variables, one obtains induced sign and trivial characters by expanding sums of products of certain determinants and permanents, respectively. We will look at a new analogous result which holds for hyperoctahedral group characters induced from four one-dimensional characters of its Young subgroups.  This requires more formal variables and four combinations of determinants and permanents.  This is joint work with Jongwon Kim.