Title   name
The 5th Korea Toric Topology Winter Workshop
 
  Title
  Speaker   Takashi Sato  
  Date 2019-01-23
  Host
  Place Gyeongju, K- Hotel
  File  의 1 번째 Real Media 동영상입니다.
 
Abstract : The double coinvariant ring of a pseudo-reflection group is a quotient ring
of the tensor product of two copies of the ring of polynomial functions on
the vector space on which the pseudo-reflection group acts. It is an analogue
of the equivariant cohomology rings of flag varieties. There is a natural
homomorphism from the double coinvariant ring to the direct product of copies of the ring of polynomial functions, and McDaniel shows that its image is described in terms of pseudo-reflections analogously to the GKM theory. I will introduce his work and give other description which is more suitable for combinatorics.