Title

Puzzles in K-homology of Grassmannians

Document Type

Article

Abstract

Knutson, Tao, and Woodward formulated a Littlewood–Richardson rule for the cohomology ring of Grassmannians in terms of puzzles. Vakil and Wheeler–Zinn-Justin have found additional triangular puzzle pieces that allow one to express structure constants for K-theory of Grassmannians. Here we introduce two other puzzle pieces of hexagonal shape, each of which gives a Littlewood–Richardson rule for K-homology of Grassmannians. We also explore the corresponding eight versions of K-theoretic Littlewood–Richardson tableaux.

Department(s)

Mathematics and Computer Science

Publication Title

Pacific Journal of Mathematics

Volume

303

Issue

2

First Page

703

Last Page

727

Publication Date

2019

DOI

10.2140/pjm.2019.303.703

ISSN

0030-8730

E-ISSN

1945-5844

COinS