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Speaker:

Siegfried Böcherer
Affiliation:

Universität Mannheim
Date:

Wed, 2019-03-20 16:30 - 17:30
Location:

MPIM Lecture Hall
Parent event:

Number theory lunch seminar We show how one can obtain almost all vector-valued Siegel modular forms from scalar-valued ones of higher degree by using appropriate differential operators, more precisely, only Siegel type Eisenstein series are needed in this procedure. In this way, one gets an integral structure on vector-valued modular forms from a classical result on rational Fourier coefficients (with bounded denominators) of such Eisenstein series. This procedure works for arbitrary congruence subgroups. We also report on applications of this result in the theory of p-adic vector-valued modular forms.

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