Department of Mathematics

Combinatorics and Graph Theory

  •  Jessica Striker, North Dakota State University
  •  Promotion, rotation, and a web basis of invariant polynomials from noncrossing partitions
  •  10/20/2021
  •  3:00 PM - 3:50 PM
  •  Online (virtual meeting) (Virtual Meeting Link)
  •  Bruce E Sagan (

Many combinatorial objects with strikingly good enumerative formulae and dynamical behavior (such as cyclic sieving) have underlying algebraic meaning. We first review classical results on promotion of standard Young tableaux, rotation of matchings/webs, and related invariant polynomials and symmetric group actions. We then discuss recent joint work with Rebecca Patrias and Oliver Pechenik involving the more general setting of increasing tableaux and noncrossing partitions.



Department of Mathematics
Michigan State University
619 Red Cedar Road
C212 Wells Hall
East Lansing, MI 48824

Phone: (517) 353-0844
Fax: (517) 432-1562

College of Natural Science