Pseudo-rationality conjecture for p-adic local models

Let \calM\calG,μ\onsch\calM_{\calG,\mu}^{\on{sch}} be the scheme-theoretic local model attached to a parahoric group scheme \calG\calG and a minuscule cocharacter μ\mu. Pseudo-rationality conjecture. The local model \calM\calG,μ\onsch\calM_{\calG,\mu}^{\on{sch}} has pseudo-rational singularities. The conjecture is motivated by the singularity results of Fakhruddin–Haines–L.–R.; the source does not state that it has been proved in full generality.

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Primary source

Johannes Anschütz, Ian Gleason, João Lourenço and Timo Richarz, “On the p-adic theory of local models”, arXiv:2201.01234 (2026).

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