Virtual commutative algebra seminar

Speaker: Xianglong Ni, University of California, Berkeley, CA, USA

Date/Time: 28 October 2022, 6:30pm IST/ 1:00pm GMT /9:00am ET (joining 
time 6:20 pm IST)

Gmeet link: meet.google.com/ngr-tekr-vfb [1]

Title: Linkage in codimension three
Abstract:  All perfect ideals of codimension two are in the linkage 
class of a complete intersection (licci), but in codimension three and 
beyond this is no longer the case. I will share some ongoing work, joint 
with Lorenzo Guerrieri and Jerzy Weyman, which illustrates how the 
theory of "higher structure maps" originating from Weyman's generic ring 
may be used to distinguish licci ideals within the broader class of 
perfect ideals of codimension three.

For more information and links to previous seminars, visit the website 
of VCAS:

  https://sites.google.com/view/virtual-comm-algebra-seminar [2]