On the existence of ghost classes in the cohomology of the Shimura variety associated to \(GU(2, 2)\)

DOI10.4310/MRL.2018.v25.n4.a9zbMath1444.14053OpenAlexW2901632390MaRDI QIDQ1720120

Matías Victor Moya Giusti

Publication date: 12 February 2019

Published in: Mathematical Research Letters (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.4310/mrl.2018.v25.n4.a9

zbMATH Keywords

Shimura varietiesmixed Hodge structuresghost classes

Mathematics Subject Classification ID

Differentials and other special sheaves; D-modules; Bernstein-Sato ideals and polynomials (14F10) Modular and Shimura varieties (14G35) Compactifications; symmetric and spherical varieties (14M27)

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Boundary and Eisenstein cohomology of \(\mathrm{SL}_3(\mathbb{Z})\) ⋮ Ghost classes in \({\mathbb{Q}} \)-rank two orthogonal Shimura varieties

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