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Authors
Affiliations
1 Fakultat fur Mathematik, Nordbergstraße 15, A-1090 Wien, AT
Source
Journal of the Ramanujan Mathematical Society, Vol 28, No 1 (2013), Pagination: 19–48
Abstract
In this paper we fully describe the cuspidal and the Eisenstein cohomology of the group G = GL2 over a definite quaternion algebra D/Q. Functoriality is used to show the existence of residual and cuspidal automorphic forms, having cohomology in degree 1. The latter ones turn out to be CAP-representations, though G satisfies Strong Multiplicity One.