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Algebraic Combinatorics Seminar - Aram Dermenjian
2020-09-24 13:00 (America/Toronto)
TITLE: Sign variations and descents

Speaker:
Aram Dermenjian

Affiliation:
York University

Zoom:
Contact Karen Yeats

ABSTRACT:

In this talk we consider a poset structure on projective sign vectors.
We show that the order complex of this poset is partitionable and give
an interpretation of the h-vector using type B descents of the type D
Coxeter group.
