講演会

過去の記録 ~11/13次回の予定今後の予定 11/14~


2018年09月18日(火)

17:00-18:00   数理科学研究科棟(駒場) 056号室
Alexander Beilinson 氏 (University of Chicago)
Topological epsilon-factors (ENGLISH)
[ 講演概要 ]
I will explain (following mostly my old article arXiv:0610055) how the Kashiwara-Shapira Morse theory construction of the characteristic cycle of a constructible R-sheaf can be refined to yield the cycle with coefficients in the K-theory spectrum K(R). The construction can be viewed as a topological analog of the arithmetic theory of epsilon-factors.