Steven N. Karp

activity

20152026

most citedSign variation, the Grassmannian, and total positivity

34 citations · 194 across the 17 of their papers we have counts for

collaborators

Showing 2022Show all

2 papers · 1 filter

math.CO2022

q-Whittaker functions, finite fields, and Jordan forms

Steven N. Karp, Hugh Thomas

The $q$ -Whittaker function $W_{λ} (x; q)$ associated to a partition $λ$ is a $q$ -analogue of the Schur function $s_{λ} (x)$ , and is defined as the $t = 0$ specialization o…

math.CO2022★ 8 cited

On two notions of total positivity for partial flag varieties

Anthony M. Bloch, Steven N. Karp

Given integers $1 \leq k_{1} < \dots < k_{l} \leq n - 1$ , let $Fl_{k_{1}, \dots, k_{l}; n}$ denote the type $A$ partial flag variety consisting of all chains of subspaces $(V_{k_1}\subset…