月曜解析セミナー：Regularity of the Brown Measure of Non-Normal Elements（北川遊氏）

Time：16:30-18:00

Place：理学部3号館3-210室

Organizer：小林 政晴、洞 彰人、長谷部 高広、浜向 直、佐藤 僚亮

Speaker：北川 遊   氏 (京都大学)

Title：Regularity of the Brown Measure of Non-Normal Elements

Abstract：The Brown measure is a non-normal analogue of the spectral distribution, but its regularity is still poorly understood in general. This talk is about the regularity properties of Brown measures for sums of *-free operators with R-diagonal perturbations and for freely infinitely divisible R-diagonal elements. The talk is based on joint work with Hari Bercovici, Mihai Popa, and Ping Zhong.