84 citations · 357 across the 24 of their papers we have counts for
28 papers
Oort's conjecture for split unitary Shimura varieties
Paul Philippe, Fabian Schnelle, Eva Viehmann
We prove that generically on the basic stratum of split unitary Shimura varieties, the universal abelian variety with endomorphism structure and polarization has minimal automorphi…
Oort's conjecture on automorphisms of generic supersingular abelian varieties
Eva Viehmann
We prove Oort's conjecture that generically on the supersingular locus of the moduli space of principally polarized abelian varieties of genus g and in characteristic p, the automo…
Affine Deligne-Lusztig varieties beyond the minute case
Felix Schremmer, Eva Viehmann
Affine Deligne-Lusztig varieties in the fully Hodge-Newton decomposable (or minute) case are the only larger class of ADLVs which could be described completely in the past. Instanc…
A Harder-Narasimhan stratification of the -Grassmannian
Kieu Hieu Nguyen, Eva Viehmann
We establish a Harder-Narasimhan formalism for modifications of -bundles on the Fargues-Fontaine curve. The semi-stable stratum of the associated stratification of the $B_{dR}^+…
Closure relations of Newton strata in Iwahori double cosets
Stefania Trentin, Eva Viehmann
We consider the Newton stratification on Iwahori double cosets for a connected reductive group. We prove the existence of Newton strata whose closures cannot be expressed as a unio…
On Newton strata in the -Grassmannian
Eva Viehmann
We study parabolic reductions and Newton points of G-bundles on the Fargues-Fontaine curve and the Newton stratification on the -Grassmannian for any reductive group G. L…