The MacNeille completion of the type B Bruhat poset

Paul Zinn-Justin
University of Melbourne

Following Lascoux and Schutzenberger, we'll discuss the MacNeille completion of Weyl groups of classical types endowed with (strong) Bruhat order. We'll discuss the connection with Alternating Sign Matrices and provide a new explicit description of it in type B.

Back to Workshop II: Integrability and Algebraic Combinatorics