Summer 2015:

	April 8	Matjaz Konvalinka, University of Ljubljana (webpage: http://www.fmf.uni-lj.si/~konvalinka/ ) Title: The role of residue and quotient table in the theory of k-Schur functions.
	April 15	Kyle Peterson, DePaul University (webpage: http://math.depaul.edu/tpeter21/ ) Title: On a conjecture of Gessel regarding bivariate Eulerian polynomials.
	April 22	William Slofstra, UC Davis (webpage: https://www.math.ucdavis.edu/~wslofstra/ ) Title: Schubert varieties and inversion hyperplane arrangements.
	April 29	Graham Denham, Western University (webpage: http://gdenham.math.uwo.ca/ ) Title: Higher resonance varieties of matroids .
	May 1	Michelle Wachs, University of Miami (webpage: http://www.math.miami.edu/~wachs/ ) Title: Eulerian polynomials and beyond.
	May 6	Dmitry Ryabogin, Kent State University (webpage: http://www.math.kent.edu/~ryabogin/ ) Title: On a continuous Rubik's cube.
	May 13	Rafael S. González D'león, University of Kentucky (webpage: http://dleon.combinatoria.co/ ) Title: The combinatorial structure behind multibracketed free Lie algebras .
	May 20	Edwin O'Shea , James Madison University (webpage: http://educ.jmu.edu/~osheaem/ ) Title: The Lecture Hall Theorem and Abacus Diagrams.
	May 27	Andrew Berget, Western Washington University (webpage: http://faculty.wwu.edu/bergeta/ ) Title: Ideals generated by superstandard tableaux .
	June 3	Ben Braun, University of Kentucky Lexington (webpage: http://www.ms.uky.edu/~braun/ ) Title: Unimodality problems in Ehrhart theory.
Summer 2015:
	July 28	Jeremy Martin , University of Kansas (webpage: http://www.math.ku.edu/~jmartin/ ) Title: A non-partitionable Cohen-Macaulay simplicial complex .