Showing math.AGShow all
2 papers · 1 filter
math.AG2022
Hypergeometric sheaves for classical groups via geometric Langlands
Masoud Kamgarpour, Daxin Xu, Lingfei Yi
In a previous paper, the first and third authors gave an explicit realization of the geometric Langlands correspondence for hypergeometric sheaves, considered as -lo…
math.AG2018
On higher direct images of convergent isocrystals
Daxin Xu
Let k be a perfect field of characteristic p>0 and W the ring of Witt vectors of k. In this article, we give a new proof of the Frobenius descent for convergent isocrystals on a va…