Twisted zastava and $q$-Whittaker functions

TL;DR

This paper extends previous work on zastava spaces and $q$-Whittaker functions to non-simply laced cases by introducing and analyzing twisted zastava spaces.

Contribution

It introduces twisted zastava spaces and generalizes existing results to non-simply laced Lie types.

Findings

Extension of zastava space results to non-simply laced cases

Introduction of twisted zastava spaces

New properties and structures of these spaces

Abstract

In this note, we extend the results of arxiv:1111.2266 and arxiv:1203.1583 to the non simply laced case. To this end we introduce and study the twisted zastava spaces.