Vanishing theorems for Shimura varieties at unipotent level

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Názov: Vanishing theorems for Shimura varieties at unipotent level
Autori: Caraiani, Ana, Gulotta, Daniel R., Johansson, Christian, 1985
Zdroj: Journal of the European Mathematical Society. 25(3):869-911
Predmety: p-adic automorphic forms, perfectoid spaces, Locally symmetric spaces
Popis: We show that the compactly supported cohomology of Shimura varieties of Hodge type of infinite Γ1.p1/-level (defined with respect to a Borel subgroup) vanishes above the middle degree, under the assumption that the group of the Shimura datum splits at p. This generalizes and strengthens the vanishing result proved in [A. Caraiani et al., Compos. Math. 156 (2020)]. As an application of this vanishing theorem, we prove a result on the codimensions of ordinary completed homology for the same groups, analogous to conjectures of Calegari–Emerton for completed (Borel–Moore) homology.
Popis súboru: electronic
Prístupová URL adresa: https://research.chalmers.se/publication/535687
https://research.chalmers.se/publication/535687/file/535687_Fulltext.pdf
Databáza: SwePub
Popis
Abstrakt:We show that the compactly supported cohomology of Shimura varieties of Hodge type of infinite Γ1.p1/-level (defined with respect to a Borel subgroup) vanishes above the middle degree, under the assumption that the group of the Shimura datum splits at p. This generalizes and strengthens the vanishing result proved in [A. Caraiani et al., Compos. Math. 156 (2020)]. As an application of this vanishing theorem, we prove a result on the codimensions of ordinary completed homology for the same groups, analogous to conjectures of Calegari–Emerton for completed (Borel–Moore) homology.
ISSN:14359863
14359855
DOI:10.4171/JEMS/1195