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Teruhisa Koshikawa ( Kyoto University, Japan )
2018-02-06  14:00 - 14:50
Room 101, Mathematics Research Center Building (ori. New Math. Bldg.)

I will discuss the A_inf-cohomology in the case of semistale reduction, extending the work of Bhatt-Morrow-Scholze. Our cohomology theory interpolates the log crystalline cohomology, the log de Rham cohomology, and the etale cohomology. This is joint work with Kestutis Cesnavicius.