Towards combinatorial invariance for Kazhdan-Lusztig polynomials
arXiv:2111.15161 · doi:10.1090/ert/624
Abstract
Kazhdan-Lusztig polynomials are important and mysterious objects in representation theory. Here we present a new formula for their computation for symmetric groups based on the Bruhat graph. Our approach suggests a solution to the combinatorial invariance conjecture for symmetric groups, a well-known conjecture formulated by Lusztig and Dyer in the 1980s.
47 pages, comments welcome