activity
19992026
most citedThe Tannakian Formalism and the Langlands Conjectures

10 citations · 38 across the 26 of their papers we have counts for

collaborators

33 papers

math.RT2026

Tao-Travkin equivalence revisited

Penghui Li, David Nadler, Yakov Varshavsky +1

We give a simpler proof of the theorem of J.~Tao and R.~Travkin saying that (the neutral block of) the affine Hecke category is the monoidal colimit of finite Hecke categories. The…

math.AG2026

Applications of (higher) categorical trace II: Deligne-Lusztig theory

D. Gaitsgory, N. Rozenblyum, Y. Varshavsky

We use the formalism of the (2-category) AGCat, developed in [GRV], and the operation of higher categorical trace to (re)derive a number of results in the Deligne-Lusztig theory.

math.RT2026

Witt affine Springer theory

Noam Nissan, Yakov Varshavsky

This paper extends the affine Springer theory developed by Bouthier, Kazhdan, and the second author (see [BKV]) to the mixed characteristic case. In particular, we introduce a theo…

math.AG2025

Applications of (higher) categorical trace I: the definition of AGCat

Dennis Gaitsgory, Nick Rozenblyum, Yakov Varshavsky

In this paper we record the formalism of algebro-geometric DG categories (in short AGCat) following a suggestion of V. Drinfeld. This formalism will be applied to ``real-world" pro…

math.RT2025

Rationality properties of complex representations of reductive p-adic groups

David Kazhdan, Maarten Solleveld, Yakov Varshavsky

For a reductive group G over a non-archimedean local field, we compare smooth representations over C with smooth representations over Qbar (an algebraic closure of Q). We show that…

math.AG2025

Perversity of coinvariants of affine Springer sheaves

Alexis Bouthier, David Kazhdan, Yakov Varshavsky

Using techniques of [BKV], we construct a perverse t-structure on the infinity-category of l-adic LG-equivariant sheaves on the regular-semisimple bounded locus of the loop group L…