On modulo cohomology of p-adic Deligne-Lusztig varieties for GLₙ

In 1976, Deligne and Lusztig realized the representation theory of finite groups of Lie type inside \'etale cohomology of certain algebraic varieties. Recently, a p-adic version of this theory started to emerge: there are p-adic Deligne-Lusztig spaces, whose cohomology encodes representation theoretic information for p-adic groups - for instance, it partially realizes local Langlands correspondence with characteristic zero coefficients. However, the parallel case of coefficients of positive characteristic p has not been inspected so far. The purpose of this article is to initiate such an inspection. In particular, we relate cohomology of certain p-adic Deligne-Lusztig spaces to Vign\'eras's modular local Langlands correspondence for GLₙ.