University of Minnesota Combinatorics Seminar 

date  speaker  affiliation  title (possibly click for an abstract) 
Fall Semester  
September 10  Patricia Hersh  N. Carolina State Univ./Cornell Univ.  The "q=1" phenomenon via homology concentration 
September 17  No seminar Willard Miller conference starts  
September 24  Jia Huang  Univ. of Minnesota  0Hecke algebras acting on flags and coinvariants 
October 1  Vic Reiner  Univ. of Minnesota  Ppartitions revisited 
October 8  Luke Oeding  Univ. of Florence  Defining equations of orbit closures in skew symmetric tensors 
October 15  Ricky Liu  Univ. of Minnesota  Matching polytopes and Specht modules 
October 22  Jonah Blasiak  Univ. of Michigan  Nonstandard Hecke algebra for the Kronecker problem 
October 29  June Huh  Univ. of Illinois  Urbana/Champaign  Milnor numbers of projective hypersurfaces and the chromatic polynomial of graphs 
November 5  Kenji Kashiwabara  Univ. of Tokyo  Closure operators and extremepoint operators 
November 12  Hoda Bidkhori  N. Carolina State Univ.  Lattice Path Matroid Polytopes 
November 19  Luis Serrano  Univ. du Quebec a Montreal  Maximal fillings of moon polyominoes, simplicial complexes, and Schubert polynomials 
November 26  No seminar Thanksgiving  
December 3  Florian Block  Univ. of Michigan  Computing Node Polynomials for Plane Curves 
December 10  Jang Soo Kim  Univ. of Minnesota  TouchardRiordan formulas, Tfractions, and Jacobi's triple product identity 
December 17  No seminar  final exams  
Spring Semester  
January 21  No seminar first week of classes  
Monday, January 24 Special seminar at 11:15am in VinH20  Karola Mészáros  MIT  Triangulations of root polytopes and Kirillov's conjectures 
January 28  Vic Reiner  Univ. of Minnesota  Spectra of symmetrized shuffling operators 
February 4  Jang Soo Kim  Univ. of Minnesota  On enumeration formulas for weighted Motzkin paths 
February 11  Jia Huang  Univ. of Minnesota  Counting fixed points for torus actions on flags 
February 18  Gregg Musiker  Univ. of Minnesota  The cyclotomic polynomial topologically 
February 25  Alex Fink  North Carolina State Univ.  Valuative matroid invariants and the Grassmannian 
March 4  Peter Webb  Univ. of Minnesota  Sets with a category action 
March 11  Ricky Liu  Univ. of Minnesota  Matrices with restricted entries over finite fields 
March 18  No seminar spring break  
March 25  David Perkinson  Reed College  Some algebraic geometry of sandpiles 
April 1  Pavlo Pylyavskyy  Univ. of Minnesota  The inverse problem in cylindrical electrical networks 
April 8  Vic Reiner  Univ. of Minnesota  A new twisted Gelfand pair from reflection groups 
April 15  Nathan Williams  Univ. of Minnesota  Promotion and Rowmotion 
April 22  Vivien Ripoll  Univ. du Quebec a Montreal  Factorisations of a Coxeter element and discriminant of a reflection group 
April 29  Christian Stump  Univ. du Quebec a Montreal  A uniform bijection between nonnesting and noncrossing partitions 
May 6  No seminar  
May 13  No seminar final exams  
Summer seminars 2011  
Tuesday, Aug 23 12:20pm, VinH 364  Carsten Lange  FUBerlin  Minkowski decompositions of associahedra 
