A. Pun

activity

20162025

collaborators

Showing 2018Show all

2 papers · 1 filter

math.CO2018

$k$ -Schur expansions of Catalan functions

Jonah Blasiak, Jennifer Morse, Anna Pun +1

We make a broad conjecture about the $k$ -Schur positivity of Catalan functions, symmetric functions which generalize the (parabolic) Hall-Littlewood polynomials. We resolve the con…

math.CO2018

Catalan functions and $k$ -Schur positivity

Jonah Blasiak, Jennifer Morse, Anna Pun +1

We prove that graded $k$ -Schur functions are $G$ -equivariant Euler characteristics of vector bundles on the flag variety, settling a conjecture of Chen-Haiman. We expose a new mira…

k-Schur expansions of Catalan functions

Catalan functions and k-Schur positivity

$k$ -Schur expansions of Catalan functions

Catalan functions and $k$ -Schur positivity