Zoom 병행: https://snu-ac-kr.zoom.us/j/2473239867

 

덴 트위스트는 곡면 위 자기위상동형사상 (self-homeomorphism)의 가장 기본적인 예입니다. 이번 강연에서는 덴 트위스트를 이용한 몇 가지 퍼즐을 풀고 그 의의를 알아보고자 합니다. (A Dehn twist is the simplest one of self-homeomorphisms on a surface. In this talk, we will solve several puzzles and look into the meaning from them. This talk will be given in Korean.)