Jean-Stefan Koskivirta

activity

20122026

most citedSections of the Hodge bundle over Ekedahl-Oort strata of Shimura varieties of Hodge type

10 citations · 30 across the 16 of their papers we have counts for

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math.NT2024

The cone conjecture for vector-valued Siegel automorphic forms

Jean-Stefan Koskivirta

We prove that the effective cone of automorphic vector bundles on the Siegel modular variety of rank $n$ in characteristic $p$ at a place of good reduction is encoded by the stack…

math.NT2024

The stack of $G$ -zips is a Mori dream space

Jean-Stefan Koskivirta

We first extend previous results of the author with T. Wedhorn and W. Goldring regarding the existence of $μ$ -ordinary Hasse invariants for Hodge-type Shimura varieties to other au…

The cone conjecture for vector-valued Siegel automorphic forms

The stack of G-zips is a Mori dream space

The stack of $G$ -zips is a Mori dream space