Title    name
2017 KAIST Math. Colloquium
  Speaker 백형렬
  Date 2017-06-01
  Place KAIST
  File  의 1 번째 Real Media 동영상입니다.   
Abstract : The circle is the only connected closed 1-dimensional manifold, and maybe that's why it has so many interesting features. In this talk, we would like to emphasize that there are many things we still do not know about this one of the simplest manifolds. We will survey many interesting recent results around the circle in the context of low-dimensional topology.