Nishu Kumari

collaborators

2 papers

math.CO2026

Further results for classical and universal characters twisted by roots of unity

Arvind Ayyer, Nishu Kumari

We revisit factorizations of classical characters under various specializations, some old and some new. We first show that all characters of classical families of groups twisted by…

math.CO2025

Skew hook Schur functions and the cyclic sieving phenomenon

Nishu Kumari

Fix an integer $t \geq 2$ and a primitive $t^{th}$ root of unity $I ¨ $ . We consider the specialized skew hook Schur polynomial $\text{hs}_{Î»/Î¼}(X,ÏX,\dots,Ï^{t-1}X/Y,ÏY,…