Past Seminar

9 June 2022 (Thursday)

8:30 ～ 9:30 (in Vietnam time) ... Remark it starts 30 minutes earlier than usual.

10:30 ～ 11:30 (in Japan time)

Speaker: Kiyoshi Takeuchi (Tohoku University)

Title: The Milnor monodromy and the Bernstein-Sato polynomials of a meromorphic function

Abstract: The Milnor fiber of a meromorphic function was introduced by Gusein-Zade, Luengo and Melle-Hernandez about 25 years ago. Moreover they obtained a formula for its monodromy zeta function. In this talk, by showing a nice concentration on the cohomology groups of the Milnor fiber in a generic situation, we obtain also the multiplicities of the eigenvalues of the monodromy. This first part is a joint work with Tat Thang Nguyen. In the second part, we introduce the Bernstein-Sato polynomials of a meromorphic function and explain their relations with the monodromy and the multiplier ideal sheaves associated to it.

※ This is a joint seminar with "Seminar of the Department of Geometry and Topology, Hanoi Institute of Mathematics"