4 citations · 10 across the 16 of their papers we have counts for
Showing math.AGShow all
2 papers · 1 filter
math.AG2023
Higher nearby cycles and central sheaves on affine flag varieties
Pramod N. Achar, Simon Riche
In this paper we generalize and study a notion of (unipotent) nearby cycles over a higher dimensional base based on Beĭlinson's description of unipotent nearby cycles, following an…
math.AG2022
Fixed points under pinning-preserving automorphisms of reductive group schemes
Pramod N. Achar, João Lourenço, Timo Richarz +1
In this paper we determine the scheme-theoretic fixed points of pinned reductive group schemes acted upon by a group of pinning-preserving automorphisms. The results are used in a…