Workshops

Canonical subgroups via Breuil-Kisin modules

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Shin Hattori

2012-01-19
10:20:00 - 11:10:00

101 , Mathematics Research Center Building (ori. New Math. Bldg.)

The overconvergence of the canonical subgroup of the universal abelian variety is one of the key ingredients of the theory of overconvergent p- adic Siegel modular forms. In this talk, I will show the overconvergence of the canonical subgroup with expected properties via the Breuil-Kisin- Zink classification and the ramification theory of finite flat group schemes, including the case of p=2.