Monday, May 18, 2020

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2020-05-22 / 16:00 ~ 17:00
학과 세미나/콜로퀴엄 - 박사학위심사: 블록체인 네트워크상 진화론적 BWH 공격 분석 및 인위적 마이닝 풀 조작 설계 인쇄
by 김성근(KAIST)
심사위원장: 한상근, 심사위원: 김용정, 황강욱, 김동환, 김용대(전기및전자)
2020-05-20 / 09:00 ~ 10:30
학과 세미나/콜로퀴엄 - 위상수학 세미나: Actions of Homeo and Diffeo groups on manifolds 인쇄
by Lei Chen(Caltech)
In this talk, I discuss the general question of how to obstruct and construct group actions on manifolds. I will focus on large groups like Homeo(M) and Diff(M) about how they can act on another manifold N. The main result is an orbit classification theorem, which fully classifies possible orbits. I will also talk about some low dimensional applications and open questions. This is a joint work with Kathryn Mann.
Events for the 취소된 행사 포함 모두인쇄
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