Eisenstein cohomology for congruence subgroups of SO(n,2)

G. Gotsbacher

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arXiv · 0803.0762

Eisenstein cohomology for congruence subgroups of SO(n,2)

G. Gotsbacher

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Abstract

The automorphic cohomology of a connected reductive algebraic group defined over Q decomposes as a direct algebraic sum of cuspidal and Eisenstein cohomology. In the present paper we construct regular Eisenstein cohomology classes for congruence subgroups of a rational form G of Q-rank 2 of SO(n,2).

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BibTeX RIS

G. Gotsbacher. 2008-03-05. Eisenstein cohomology for congruence subgroups of SO(n,2). https://arxiv.org/abs/0803.0762

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