April 2	Jose Alejandro Samper, University of Washington On face number of polytopes and matroids.
	April 9	Carolina Benedetti, Michigan State University (webpage: http://www.math.msu.edu/~carolina/index.html ) Posets, Pieri operators and Positivity.
	April 16	Moshe Rosenfeld, University of Washington, Tacoma (webpage: http://www.tacoma.washington.edu/techabout/profile.cfm?ID=303 ) Hamiltonian cycles in prisms over graphs.
	April 23	Benjamin Young, University of Oregon (webpage: http://pages.uoregon.edu/bjy/ ) The Fomin-Kirillov reflection shuffle.
	April 30	Matthias Beck, San Francisco State University (webpage: http://math.sfsu.edu/beck/ ) Very ample and Koszul segmental fibrations.
	May 7	Karim Adiprasito, Institut des Hautes Études Scientifiques(IHES), France (webpage: http://page.mi.fu-berlin.de/adiprasito/ ) Combinatorial isoperimetric problems and relative Stanley--Reisner theory.
	May 14	Erik Slivken, University of Washington (webpage: http://www.math.washington.edu/~slivken/slivken.html ) Fixed points of pattern avoiding permutations..
	May 21	James Propp, University of Massachusetts Lowell (webpage: http://faculty.uml.edu/jpropp/ ) Homomesy: actions and averages.
	May 28	Ragnar Freij, Aalto University (webpage: http://math.aalto.fi/~alex/freijPapers.html ) Centrally Symmetric Polytopes and the 3^d Conjecture.
	June 4	, TBA.