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Speaker:
Taiwang Deng
Zugehörigkeit:
Université Paris 13, Institut Galilée/MPIM
Datum:
Mit, 06/03/2019 - 14:30 - 15:30
Location:
MPIM Lecture Hall
Parent event:
Number theory lunch seminar In this talk I will discuss the torsion classes in the cohomology of SL_2(Z) as well as its variant with compact support.
As a consequence, we show how to deduce congruences of cuspidal forms with Eisenstein classes modulo small primes.
This generalizes the previous results on Ramanujan tau functions.
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