Title   name
2017 KAIST Math. Colloquium
  Speaker   이언경    
  Date 2017-10-26
  Place KAIST
  File  의 1 번째 Real Media 동영상입니다.
Abstract : Right-angled Artin groups (RAAGs) are defined from finite simplicial graphs.
It is a fundamental question whether or not, given two RAAGs, there is an embedding from one group to the other.
Extension graphs are useful in solving this problem.
In this talk, I will briefly review RAAGs and extension graphs,
and show some results on solving the embeddability problem in RAAGs by using extension graphs.