Working Seminar Mathematical Physics -- Cluster algebras and Grassmannians II

11/19/2015 - 16:00
11/19/2015 - 17:30
Speaker: 
Marco Bertola (Concordia, CRM)
Location: 
Concordia University, Math Help Center, Rm. 912.00/Library Building, 1400 de Maisonneuve Blvd. West, Montréal
Abstract: 

After reviewing the notion of Grassmannians and Plucker coordinates, I will review the notion of positivity and then  discuss how Cluster algebras are used in  the coordinatization of Gr_{k,n} (Based on L. Williams talk/paper + Postnikov)

Refs:  1) L. K. Williams, Cluster algebrasm an introduction, Bull  Amer. Math. Soc. (New Series) vol. 51,  No. 1, 1–26 (2014) 2) K. Rietsch and L. Williams, "Cluster duality and mirror symmetry  for Grassmannianss, arXiv1507.07817 3) Alexander Postnikov, "Total positivity, Grassmannians, and networks."

Last edited by on Thu, 11/12/2015 - 17:04