Twisted zastava and $q$-Whittaker functions

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.

18 pages. v4: the final published version

References in corpus (1)

• Weyl modules for the hyperspecial current algebra

Cited by in corpus (6)

• Demazure character formula for semi-infinite flag varieties
• Equivariant $K$-theory of semi-infinite flag manifolds and Pieri-Chevalley formula
• Frobenius splitting of Schubert varieties of semi-infinite flag manifolds
• Beilinson-Drinfeld Schubert varieties and global Demazure modules
• Beilinson-Drinfeld Schubert varieties of parahoric group schemes and twisted global Demazure modules
• Kazhdan-Lusztig conjecture via Zastava spaces