Date 
Speaker  Seminar  Title 
Friday, September 16, 2011 Start: 4:10 PM
Location: 3866 East Hall * 
Cynthia Vinzant U. Michigan  Combinatorics  The central curve of a linear program 
Friday, September 23, 2011 Start: 4:10 PM
Location: 3866 East Hall * 
David Speyer U. Michigan  Combinatorics  Wiring diagrams and alternating strand diagrams 
Friday, September 30, 2011 Start: 4:10 PM
Location: 3866 East Hall * 
Max Glick U. Michigan  Combinatorics  On singularity confinement for the pentagram map 
Friday, October 07, 2011 Start: 4:10 PM
Location: 3866 East Hall * 
Leonid Petrov Northeastern U.  Combinatorics  sl(2) operators and Markov dynamics on branching graphs 
Friday, October 14, 2011 Start: 4:10 PM
Location: 3866 East Hall * 
Seungjin Lee U. Michigan  Combinatorics  Centrally symmetric polytopes with many faces 
Friday, October 21, 2011 Start: 4:10 PM
Location: 3866 East Hall * 
Lionel Levine Cornell U.  Combinatorics  Abelian networks 
Friday, October 28, 2011 Start: 4:10 PM
Location: 3866 East Hall * 
Shmuel Friedland UIC  Combinatorics  On the eigenvalues of graphs: results and conjectures 
Friday, November 04, 2011 Start: 4:10 PM
Location: 3866 East Hall * 
Daniele Rosso U. Chicago  Combinatorics  Classic and mirabolic RSK correspondence for partial flags 
Friday, November 11, 2011 Start: 4:10 PM
Location: 3866 East Hall * 
Thomas Lam U. Michigan  Combinatorics  The shape of a random affine Weyl group element, and random core partitions 
Friday, November 18, 2011 Start: 4:10 PM
Location: 3866 East Hall * 
Askold Khovanskii U. Toronto  Combinatorics  Algebraic and convex geometries 
Friday, December 02, 2011 Start: 4:10 PM
Location: 3866 East Hall * 
Cristian Lenart SUNY Albany  Combinatorics  The combinatorics of affine crystals and the energy function 
Friday, December 09, 2011 Start: 4:10 PM
Location: 3866 East Hall * 
Sean Keel U. Texas  Combinatorics  Mirror symmetry and cluster varieties 
Friday, January 27, 2012 Start: 4:10 PM
Location: 3866 East Hall * 
Nathan Reading NCSU  Combinatorics  Universal geometric cluster algebras 
Friday, February 03, 2012 Start: 4:10 PM
Location: 3866 East Hall * 
Suho Oh University of Michigan  Combinatorics  Triangulations of product of simplices 
Friday, February 10, 2012 Start: 4:10 PM
Location: 3866 East Hall * 
John Stembridge University of Michigan  Combinatorics  WCells from Scratch 
Friday, February 17, 2012 Start: 4:10 PM
Location: 3866 East Hall * 
Ivan Corwin Microsoft and MIT  Combinatorics  Tropical combinatorics and Whittaker functions 
Friday, February 24, 2012 Start: 4:10 PM
Location: 3866 East Hall * 
Jinho Baik University of Michigan  Combinatorics  Maximal crossing and nesting of random matchings 
Friday, March 09, 2012 Start: 4:10 PM
Location: 3866 East Hall * 
Svante Linusson KTH  Combinatorics  TASEP on a circle with many types of particles 
Friday, March 16, 2012 Start: 4:10 PM
Location: 3866 East Hall * 
Reiho Sakamoto Tokyo University of Science  Combinatorics  A survey on boxball systems 
Friday, March 23, 2012 Start: 4:10 PM
Location: 3866 East Hall * 
Alexander Ellis Columbia University  Combinatorics  Odd symmetric functions 
Friday, March 30, 2012 Start: 4:10 PM
Location: 3866 East Hall * 
Patricia Hersh NCSU  Combinatorics  Symmetric chain decomposition for cyclic quotients of Boolean algebras and relation to cyclic crystals 
Friday, April 06, 2012 Start: 4:10 PM
Location: 3866 East Hall * 
David Perkinson Reed College  Combinatorics  The algebraic geometry of sandpiles 
Friday, April 13, 2012 Start: 4:10 PM
Location: 3866 East Hall * 
Karola Meszaros University of Michigan  Combinatorics  Flow polytopes and the Kostant partition function 
Friday, September 14, 2012 Start: 4:10 PM
Location: 3866 East Hall * 
Cynthia Vinzant U. Michigan  Combinatorics  Hyperbolic Polynomials, Interlacers, and Sums of Squares 
Friday, September 21, 2012 Start: 4:10 PM
Location: 3866 East Hall * 
Jonah Blasiak UM  Combinatorics  Kronecker coefficients for one hook shape 
Friday, September 28, 2012 Start: 4:10 PM
Location: 3866 East Hall * 
Frank Sottile Texas A&M  Combinatorics  An inequality of Kostka numbers and Galois groups of Schubert problems of lines 
Friday, October 05, 2012 Start: 4:10 PM
Location: 3866 East Hall * 
Jed Yang UCLA  Combinatorics  Tiling simply connected regions with rectangles 
Friday, October 12, 2012 Start: 4:10 PM
Location: 3866 East Hall * 
Ricky Liu UM  Combinatorics  Subalgebras of the FominKirillov algebra 
Friday, October 19, 2012 Start: 4:10 PM
Location: 3866 East Hall * 
David Speyer U. Michigan  Combinatorics  Real Schubert problems, stable curves and tableaux combinatorics 
Friday, October 26, 2012 Start: 4:10 PM
Location: 3866 East Hall * 
Zach Hamaker Dartmouth College  Combinatorics  Relating EdelmanGreene insertion and the Little map 
Friday, November 02, 2012 Start: 4:10 PM
Location: 3866 East Hall * 
Anders Buch Rutgers U  Combinatorics  CANCELLED 
Friday, November 09, 2012 Start: 4:10 PM
Location: 3866 East Hall * 
Dustin Ross Colorado State U.  Combinatorics  The Loop MurnaghanNakayama Rule 
Friday, November 16, 2012 Start: 4:10 PM
Location: 3866 East Hall * 
Anders Buch Rutgers U.  Combinatorics  The puzzle conjecture for 2step flag manifolds 
Friday, November 30, 2012 Start: 4:10 PM
Location: 3866 East Hall * 
Harm Derksen U. Michigan  Combinatorics  The Graph Isomorphism Problem 
Friday, January 18, 2013 Start: 4:10 PM
Location: 3866 East Hall * 
Tomoo Matsumura KAIST  Combinatorics  (Factorial) Schur functions and weighted Grassmannians 
Friday, February 01, 2013 Start: 4:10 PM
Location: 3866 East Hall * 
Andreas Blass University of Michigan  Combinatorics  Shelah's bipartite matching algorithm 
Friday, February 08, 2013 Start: 4:10 PM
Location: 3866 East Hall * 
Michael Shapiro Michigan State University  Combinatorics  Growth rate classification for cluster algebras 
Friday, February 22, 2013 Start: 4:10 PM
Location: 3866 East Hall * 
Li Li Oakland University  Combinatorics  Positivity and tameness in rank 2 cluster algebras 
Friday, March 01, 2013 Start: 4:10 PM
Location: 3866 East Hall * 
Alexander Barvinok University of Michigan  Combinatorics  Thrifty approximations of convex bodies by polytopes 
Friday, March 15, 2013 Start: 4:10 PM
Location: 3866 East Hall * 
Bruce Sagan Michigan State University  Combinatorics  Factoring the characteristic polynomial of a poset 
Friday, March 22, 2013 Start: 4:10 PM
Location: 3866 East Hall * 
Michael Chmutov University of Michigan  Combinatorics  Type A molecules are of KazhdanLusztig type 
Friday, March 29, 2013 Start: 4:10 PM
Location: 3866 East Hall * 
Kevin Carde University of Michigan  Combinatorics  Cluster structures on mixed invariant rings, and related combinatorics 
Friday, September 13, 2013 Start: 4:10 PM
Location: 3866 East Hall * 
Pablo Soberon U. Michigan  Combinatorics  Tverberg's theorem: different approaches to the colorful version 
Friday, September 27, 2013 Start: 4:10 PM
Location: 3866 East Hall * 
Nicolas Ford U. Michigan  Combinatorics  The Expected Codimension of a Matroid Variety 
Friday, October 04, 2013 Start: 4:10 PM
Location: 3866 East Hall * 
Sergey Fomin U. Michigan  Combinatorics  Subtractionfree complexity 
Friday, October 11, 2013 Start: 4:10 PM
Location: 3866 East Hall * 
Suho Oh U. Michigan  Combinatorics  Linear extensions of posets to polytopes 
Friday, October 25, 2013 Start: 4:10 PM
Location: 3866 East Hall * 
Shifra Reif U. Michigan  Combinatorics  Arc diagrams and characters of Lie superalgebras 
Friday, November 01, 2013 Start: 4:10 PM
Location: 3866 East Hall * 
Patricia Hersh NCSU  Combinatorics  Regular cell complexes in total positivity 
Friday, November 08, 2013 Start: 4:10 PM
Location: 3866 East Hall * 
Ricky Liu U. Michigan  Combinatorics  Subalgebras of the FominKirillov algebra: an update 
Friday, November 15, 2013 Start: 4:10 PM
Location: 3866 East Hall * 
Jeanne Scott Institute of Mathematical Sciences, Chennai  Combinatorics  Twist and Matchings 
Friday, November 22, 2013 Start: 4:10 PM
Location: 3866 East Hall * 
Adam Sheffer Tel Aviv  Combinatorics  Recent progress in distinct distances problems 
Friday, December 06, 2013 Start: 4:10 PM
Location: 3866 East Hall * 
Andrew Snowden U. Michigan  Combinatorics  Stable representation theory 
Friday, January 17, 2014 Start: 4:10 PM
Location: 3866 East Hall * 
John WiltshireGordon U. Michigan  Combinatorics  Building vector spaces from sets 
Friday, January 24, 2014 Start: 4:10 PM
Location: 3866 East Hall * 
Amy Pang Stanford U.  Combinatorics  Card Shuffling and other HopfPower Markov Chains 
Friday, January 31, 2014 Start: 4:10 PM
Location: 3866 East Hall * 
Erik Carlsson Stony Brook  Combinatorics  q,t Catalan numbers and HallLittlewood polynomials 
Friday, February 07, 2014 Start: 4:10 PM
Location: 3866 East Hall * 
Alexander Barvinok UM  Combinatorics  On testing Hamiltonicity of graphs 
Friday, February 14, 2014 Start: 4:10 PM
Location: 3866 East Hall * 
Greg Muller U. Michigan  Combinatorics  Quiver mutation and Postnikov diagrams 
Friday, February 21, 2014 Start: 4:10 PM
Location: 3866 East Hall * 
Josh Alman MIT  Combinatorics  Positivity Phenomena in Circular Planar Electrical Networks 
Friday, March 14, 2014 Start: 4:10 PM
Location: 3866 East Hall * 
Yi Su U. Michigan  Combinatorics  Electrical Networks and Electrical Lie algebras of classical Lie type 
Friday, March 21, 2014 Start: 4:10 PM
Location: 3866 East Hall * 
Carolina Benedetti Michigan State U.  Combinatorics  From weak to strong combinatorial Hopf algebras 
Friday, March 28, 2014 Start: 4:10 PM
Location: 3866 East Hall * 
Ilia Itenberg Inst. Math. Jussieu  Combinatorics  Hurwitz numbers for real polynomials 
Friday, April 04, 2014 Start: 4:10 PM
Location: 3866 East Hall * 
Steven Sam UC Berkeley  Combinatorics  Grobner bases for twisted commutative algebras 
Friday, April 11, 2014 Start: 4:10 PM
Location: 3866 East Hall * 
David Speyer U. Michigan  Combinatorics  The twist for positroids 
Friday, April 18, 2014 Start: 4:10 PM
Location: 3866 East Hall * 
Vadim Gorin MIT  Combinatorics  From representations of classical Lie groups to free probability 
Friday, September 05, 2014 Start: 4:10 PM
Location: 3866 East Hall * 
Isabella Novik University of Washington  Combinatorics  The balanced Lower Bound Theorem and Generalized Lower Bound Conjecture 
Friday, September 12, 2014 Start: 4:10 PM
Location: 3866 East Hall * 
Bernd Sturmfels UC Berkeley  Combinatorics  Curves in the Tropical Plane 
Friday, September 19, 2014 Start: 4:10 PM
Location: 3866 East Hall * 
Anne Schilling UC Davis  Combinatorics  Crystal approach to affine Schubert calculus 
Friday, September 26, 2014 Start: 4:10 PM
Location: 3866 East Hall * 
Brendon Rhoades UCSD  Combinatorics  Parking Spaces 
Friday, October 03, 2014 Start: 4:10 PM
Location: 3866 East Hall * 
Syu Kato Kyoto University  Combinatorics  An algebraic study of extension algebras and its applications 
Friday, October 17, 2014 Start: 4:10 PM
Location: 3866 East Hall * 
Allen Knutson Cornell U.  Combinatorics  Schubert calculus and shifting of interval positroid varieties 
Friday, October 24, 2014 Start: 4:10 PM
Location: 3866 East Hall * 
Ian Le U. Chicago  Combinatorics  Horocycles in Affine Buildings and Tropicalization 
Friday, November 07, 2014 Start: 4:10 PM
Location: 3866 East Hall * 
Brendan Pawlowski U. Minnesota  Combinatorics  Cohomology classes of rank varieties and a counterexample to a conjecture of Liu 
Friday, November 14, 2014 Start: 4:10 PM
Location: 3866 East Hall * 
Thomas Lam U. Michigan  Combinatorics  Geometric crystals and Whittaker functions 
Friday, November 21, 2014 Start: 4:10 PM
Location: 3866 East Hall * 
Paul Federbush University of Michigan  Combinatorics  New Results and New Conjectures on the MonomerDimer Problem 
Friday, January 16, 2015 Start: 4:10 PM
Location: 3866 East Hall * 
John Stembridge U. Michigan  Combinatorics  Generalized stability of Kronecker coefficients 
Friday, January 23, 2015 Start: 4:10 PM
Location: 3866 East Hall * 
Andrew Snowden U. Michigan  Combinatorics  Two finiteness results in combinatorial commutative algebra 
Friday, January 30, 2015 Start: 4:10 PM
Location: 3866 East Hall * 
Pablo Soberon U. Michigan  Combinatorics  Fixed directions in mass partitions problems 
Friday, February 06, 2015 Start: 4:10 PM
Location: 3866 East Hall * 
Alexander Barvinok U. Michigan  Combinatorics  Complex geometry and computational complexity of the permanent 
Friday, February 20, 2015 Start: 4:10 PM
Location: 3866 East Hall * 
Nick Early Pennsylvania State  Combinatorics  Symmetry and Geometric Structure for the Worpitzky identity 
Friday, February 27, 2015 Start: 4:10 PM
Location: 3866 East Hall * 
Alexander Vainshtein U. Haifa  Combinatorics  Integrable cluster dynamics of directed networks and pentagram maps 
Friday, March 13, 2015 Start: 4:10 PM
Location: 3866 East Hall * 
Leonid Petrov U. Virginia  Combinatorics  On a rational deformation of HallLittlewood symmetric polynomials 
Friday, March 20, 2015 Start: 4:10 PM
Location: 3866 East Hall * 
Rebecca Patrias U. Minnesota  Combinatorics  Dual filtered graphs 
Friday, March 27, 2015 Start: 4:10 PM
Location: 3866 East Hall * 
Dylan Allegretti Yale U.  Combinatorics  The symplectic double and Fpolynomials 
Friday, April 03, 2015 Start: 4:10 PM
Location: 3866 East Hall * 
Melody Chan Harvard U.  Combinatorics  Staircase paths, Young tableaux, and BrillNoether curves 
Friday, April 10, 2015 Start: 4:10 PM
Location: 3866 East Hall * 
Dominic Searles U. Illinois  Combinatorics  Rootsystem combinatorics and Schubert calculus 
Friday, April 17, 2015 Start: 4:10 PM
Location: 3866 East Hall * 
Maria Monks Gillespie U. California at Berkeley  Combinatorics  Combinatorics of the q,tsymmetry relation in Macdonald polynomials 
Friday, September 11, 2015 Start: 3:10 PM
Location: 4088 East Hall * 
Alexander Garver U. Minnesota  Combinatorics  Lattice properties of oriented exchange graphs 
Friday, September 18, 2015 Start: 3:10 PM
Location: 4088 East Hall * 
Jose Samper U. Washington  Combinatorics  Relaxations of the matroid axioms 
Friday, September 25, 2015 Start: 3:10 PM
Location: 4088 East Hall * 
Hugh Thomas University of Quebec at Montreal  Combinatorics  Weak order on finite Coxeter groups and representation theory of preprojective algebras 
Friday, October 02, 2015 Start: 3:10 PM
Location: 4088 East Hall * 
Rachel Karpman U. Michigan  Combinatorics  Total positivity for the Lagrangian Grassmannian 
Friday, October 09, 2015 Start: 3:10 PM
Location: 4088 East Hall * 
Michelle Wachs U. Miami  Combinatorics  Chromatic quasisymmetric functions 
Friday, October 16, 2015 Start: 3:10 PM
Location: 4088 East Hall * 
Masaki Watanabe U. Tokyo  Combinatorics  Schubert polynomials and KraskiewiczPragacz modules 
Friday, October 23, 2015 Start: 3:10 PM
Location: 4088 East Hall * 
Peter Tingley Loyola U. Chicago  Combinatorics  Crystal combinatorics from PBW bases 
Friday, October 30, 2015 Start: 3:10 PM
Location: 4088 East Hall * 
Thomas McConville U. Minnesota  Combinatorics  Noncrossing tree partitions 
Friday, November 06, 2015 Start: 3:10 PM
Location: 4088 East Hall * 
Shira Zerbib U. Michigan  Combinatorics  Fractional covers and matchings in families of weighted dintervals 
Friday, November 13, 2015 Start: 3:10 PM
Location: 4088 East Hall * 
Noah Snyder Indiana U.  Combinatorics  Skein theoretic invariants of planar trivalent graphs 
Friday, November 20, 2015 Start: 3:10 PM
Location: 4088 East Hall * 
Chris Fraser U. Michigan  Combinatorics  Quasiautomorphisms of Grassmannian cluster algebras and webs 
Friday, December 04, 2015 Start: 3:10 PM
Location: 4088 East Hall * 
Zachary Hamaker U. Minnesota  Combinatorics  Involution words  a survey 
Friday, January 08, 2016 Start: 3:10 PM
Location: 4088 East Hall * 
Oliver Pechenik U. Illinois (UrbanaChampaign)  Combinatorics  Puzzles and equivariant Ktheory of Grassmannians 
Friday, January 22, 2016 Start: 3:10 PM
Location: 4088 East Hall * 
Jenna Rajchgot U Michigan  Combinatorics  Three combinatorial formulas for type A quiver polynomials and Kpolynomials 
Friday, January 29, 2016 Start: 3:10 PM
Location: 4088 East Hall * 
Jake Levinson UM  Combinatorics  KTheory and Monodromy of Schubert Curves 
Friday, February 05, 2016 Start: 3:10 PM
Location: 4088 East Hall * 
Gregg Musiker U Minnesota  Combinatorics  Generalized Snake Graphs for Generalized Cluster Algebras 
Friday, February 12, 2016 Start: 3:10 PM
Location: 4088 East Hall * 
Michael Chmutov U Minnesota  Combinatorics  Matrix Ball Construction for affine RobinsonSchensted Correspondence 
Friday, February 19, 2016 Start: 3:10 PM
Location: 4088 East Hall * 
Steven Karp UC Berkeley  Combinatorics  Sign variation, the Grassmannian, and total positivity 
Friday, February 26, 2016 Start: 3:10 PM
Location: 4088 East Hall * 
Visu Makam U. Michigan  Combinatorics  Polynomial degree bounds for matrix semiinvariants 
Friday, March 11, 2016 Start: 3:10 PM
Location: 4088 East Hall * 
Andrew Berget West Washington University  Combinatorics  A representation of B_n that restricts to the regular representation of B_{n1}. 
Friday, March 18, 2016 Start: 3:10 PM
Location: 4088 East Hall * 
Mihai Ciucu U. Indiana  Combinatorics  Lozenge tilings with gaps in a 90 degree wedge domain with mixed boundary conditions 
Friday, March 25, 2016 Start: 3:10 PM
Location: 4088 East Hall * 
Emily Barnard NCSU  Combinatorics  CoxeterbiCatalan Combinatorics 
Friday, April 01, 2016 Start: 3:10 PM
Location: 4088 East Hall * 
David Speyer U Michigan  Combinatorics  Kasteleyn's method and positroids 
Friday, April 08, 2016 Start: 3:10 PM
Location: 4088 East Hall * 
Vivek Shende UC Berkeley  Combinatorics  Cluster varieties from Legendrian knots 
Friday, September 16, 2016 Start: 3:10 PM
Location: 4088 East Hall * 
Sam Payne Yale U.  Combinatorics  Moduli spaces of tropical curves and representations of the symmetric group 
Friday, September 30, 2016 Start: 3:10 PM
Location: 4088 East Hall * 
Brendan Pawlowski U. Michigan  Combinatorics  A representationtheoretic interpretation of positroid classes 
Friday, October 07, 2016 Start: 3:10 PM
Location: 4088 East Hall * 
Dylan Thurston Indiana U.  Combinatorics  Positivity and canonical bases for surface skein algebras 
Friday, October 14, 2016 Start: 3:10 PM
Location: 4088 East Hall * 
SeungJin Lee KIAS  Combinatorics  Combinatorial description of the cohomology of the affine flag variety 
Friday, October 21, 2016 Start: 3:10 PM
Location: 4088 East Hall * 
Alexander Barvinok U. Michigan  Combinatorics  Complex zeros and computational complexity of partition functions 
Friday, October 28, 2016 Start: 3:10 PM
Location: 4088 East Hall * 
Ian Le Perimeter Institute  Combinatorics  Cluster Structures on Higher Teichmuller Spaces for Classical Groups 
Friday, November 04, 2016 Start: 3:10 PM
Location: 4088 East Hall * 
Elizabeth Milicevic Haverford College  Combinatorics  Maximal Newton polygons and the quantum Bruhat graph 
Friday, November 11, 2016 Start: 3:10 PM
Location: 4088 East Hall * 
Max Glick U. Connecticut  Combinatorics  Discrete solitons in infinite reduced words 
Friday, November 18, 2016 Start: 3:10 PM
Location: 4088 East Hall * 
Qiao Zhou UC Berkeley  Combinatorics  Convex polytopes for the central degeneration of the affine Grassmannian 
Friday, January 20, 2017 Start: 3:10 PM
Location: 4088 East Hall * 
Balazs Elek Cornell  Combinatorics  Pizzas and KazhdanLusztig atlases on toric surfaces 
Friday, January 27, 2017 Start: 3:10 PM
Location: 4088 East Hall * 
Gabriel Frieden U. Michigan  Combinatorics  A rational lift of the combinatorial Rmatrix 
Friday, February 03, 2017 Start: 3:10 PM
Location: 4088 East Hall * 
David Speyer U. Michigan  Combinatorics  Large colored sum free sets in finite vector spaces 
Friday, February 10, 2017 Start: 3:10 PM
Location: 4088 East Hall * 
Bo Lin UC Berkeley  Combinatorics  Computing Linear Systems on Metric Graphs 
Friday, February 17, 2017 Start: 3:10 PM
Location: 4088 East Hall * 
Brendan Pawlowski University of Michigan  Combinatorics  Transition formulas and SchurPpositivity for (stable) involution Schubert polynomials 
Friday, March 10, 2017 Start: 3:10 PM
Location: 4088 East Hall * 
Allen Knutson Cornell  Combinatorics  Schubert puzzles and quantum integrable systems 
Friday, March 17, 2017 Start: 3:10 PM
Location: 4088 East Hall * 
Federico Ardila San Francisco State U.  Combinatorics  The algebraic and combinatorial structure of generalized permutahedra 
Friday, March 24, 2017 Start: 3:10 PM
Location: 4088 East Hall * 
Rachel Karpman Ohio State University  Combinatorics  Triangulations, plabic graphs, and Soliton solutions to the KP equation 
Friday, March 31, 2017 Start: 3:10 PM
Location: 4088 East Hall * 
Sergei Lando HSE Moscow & OSU  Combinatorics  Deltamatroids and Vassiliev invariants 
Friday, April 07, 2017 Start: 3:10 PM
Location: 4088 East Hall * 
Stefan Froehlich U. Michigan  Combinatorics  Honeycombs and Kronecker products 
Friday, April 14, 2017 Start: 3:10 PM
Location: 4088 East Hall * 
Vladimir Retakh Rutgers U.  Combinatorics  Noncommutative Catalan numbers 
Friday, April 21, 2017 Start: 3:10 PM
Location: 4088 East Hall * 
Chris Fraser IUPUI  Combinatorics  Braid group symmetries of Grassmannian cluster algebras 
Friday, September 08, 2017 Start: 4:10 PM
Location: 4088 East Hall * 
Brendon Rhoades UC San Diego  Combinatorics  Ordered set partitions, generalized coinvariant algebras, and the Delta Conjecture 
Friday, September 15, 2017 Start: 4:10 PM
Location: 4088 East Hall * 
Pavel Galashin MIT  Combinatorics  Zamolodchikov periodicity and integrability 
Friday, September 22, 2017 Start: 4:10 PM
Location: 4088 East Hall * 
Oliver Pechenik U. Michigan  Combinatorics  Decompositions of Grothendieck polynomials 
Friday, September 29, 2017 Start: 4:10 PM
Location: 4088 East Hall * 
Alexey Bufetov MIT  Combinatorics  HallLittlewood RSK algorithm 
Friday, October 06, 2017 Start: 4:10 PM
Location: 4088 East Hall * 
Christin Bibby U. Michigan  Combinatorics  A generalization of Dowling lattices 
Friday, October 20, 2017 Start: 4:10 PM
Location: 4088 East Hall * 
Anna Weigandt U. Illinois, UrbanaChampaign  Combinatorics  Prism Tableaux and Alternating Sign Matrices 
Friday, October 27, 2017 Start: 4:10 PM
Location: 4088 East Hall * 
Steven Karp U. Michigan  Combinatorics  Topology of totally positive spaces 
Friday, November 03, 2017 Start: 4:10 PM
Location: 4088 East Hall * 
Nathan Reading North Carolina State U.  Combinatorics  Dominance phenomena: mutation, scattering and cluster algebras 
Friday, November 10, 2017 Start: 4:10 PM
Location: 4088 East Hall * 
Benjamin Wyser Oklahoma State U.  Combinatorics  Singularities of Korbit closures and interval pattern avoidance 
Friday, November 17, 2017 Start: 4:10 PM
Location: 4088 East Hall * 
Hugh Thomas UQAM  Combinatorics  RobinsonSchenstedKnuth via quiver representations 
Friday, December 01, 2017 Start: 4:10 PM
Location: 4088 East Hall * 
Jeffrey Kuan Columbia  Combinatorics  Algebraic constructions of Markov duality functions 
Friday, December 08, 2017 Start: 4:10 PM
Location: 4088 East Hall * 
Tair Akhmejanov Cornell  Combinatorics  Affine Growth Diagrams 
Friday, January 12, 2018 Start: 4:10 PM
Location: 4088 East Hall * 
Hailun Zheng U. Michigan  Combinatorics  A lower bound theorem for centrally symmetric simplicial polytopes 
Friday, January 19, 2018 Start: 4:10 PM
Location: 4088 East Hall * 
Joshua Swanson U. Washington  Combinatorics  Major Index Asymptotics 
Friday, January 26, 2018 Start: 4:10 PM
Location: 4088 East Hall * 
Hanbaek Lyu Ohio State U.  Combinatorics  Double jump phase transition in a random soliton cellular automaton 
Friday, February 02, 2018 Start: 4:10 PM
Location: 4088 East Hall * 
Nate Harman U. Chicago  Combinatorics  Quantum integer valued polynomials and stable representation theory 
Friday, February 09, 2018 Start: 4:10 PM
Location: 4088 East Hall * 
Eric Ramos U. Michigan  Combinatorics  Families of nested graphs with compatible symmetricgroup actions 
Friday, February 16, 2018 canceled Start: 4:10 PM
Location: 4088 East Hall * 
Evita Nestoridi Princeton U.  Combinatorics  Cutoff for random to random card shuffle (cancelled) 
Friday, March 09, 2018 Start: 4:10 PM
Location: 4088 East Hall * 
Zachary Hamaker U. Michigan  Combinatorics  Ktriangulations, subwords and plane partitions 
Friday, March 16, 2018 Start: 4:10 PM
Location: 4088 East Hall * 
Max Glick Ohio State U.  Combinatorics  GaleRobinson quivers, representations, and combinatorial formulas 
Friday, March 23, 2018 Start: 4:00 PM
Location: 4088 East Hall * 
Anna Weigandt UIUC  Combinatorics  Partition Identities and Quiver Representations 
Friday, March 30, 2018 Start: 4:10 PM
Location: 4088 East Hall * 
Bruce Sagan Michigan State University  Combinatorics  Descent polynomials 
Friday, April 06, 2018 Start: 4:10 PM
Location: 4088 East Hall * 
Neriman Tokcan University of Michigan  Combinatorics  Newton Polytopes in Algebraic Combinatorics 
Friday, April 13, 2018 Start: 4:10 PM
Location: 4088 East Hall * 
Robert Walker University of Michigan  Combinatorics  Hearing the Limiting Shape of a Hypersurface Configuration 
Friday, September 14, 2018 Start: 3:00 PM
Location: 2866 East Hall * 
Dylan Rupel Michigan State University  Combinatorics  The Combinatorics of Compatible Pairs 
Friday, September 21, 2018 Start: 3:00 PM
Location: 2866 East Hall * 
Anna Weigandt University of Michigan  Combinatorics  Bumpless Pipe Dreams and Alternating Sign Matrices 
Friday, September 28, 2018 Start: 3:00 PM
Location: 2866 East Hall * 
Daniel Nguyen University of Michigan  Combinatorics  Integer points in irrational polyhedra and an extension of Presburger Arithmetic 
Friday, October 05, 2018 Start: 3:00 PM
Location: 2866 East Hall * 
Eric Bucher Xavier University  Combinatorics  Locally acyclic cluster algebras and reddening sequences 
Friday, October 19, 2018 Start: 3:00 PM
Location: 2866 East Hall * 
Pavel Galashin M.I.T.  Combinatorics  Ising model and total positivity 
Friday, October 26, 2018 Start: 3:00 PM
Location: 2866 East Hall * 
Zachary Hamaker University of Michigan  Combinatorics  Weak order for monotone triangles 
Friday, November 02, 2018 Start: 3:00 PM
Location: 2866 East Hall * 
Harry Richman University of Michigan  Combinatorics  Equidistribution of tropical Weierstrass points 
Friday, November 09, 2018 Start: 3:00 PM
Location: Forum Hall Palmer Commons * 
Jonah Blasiak Drexel University  Combinatorics  Fominfest: Catalan functions and kSchur positivity (NOTE unusual location and many other talks throughout the weekend) 
Friday, November 16, 2018 Start: 3:00 PM
Location: 2866 East Hall * 
James Propp University of Massachusetts, Lowell  Combinatorics  Dynamics from Posets 
Friday, November 30, 2018 Start: 3:00 PM
Location: 2866 East Hall * 
Greg Muller University of Oklahoma  Combinatorics  Linear recurrence relations with periodic solutions 
Friday, December 07, 2018 Start: 3:00 PM
Location: 2866 East Hall * 
Bob Lutz University of Michigan  Combinatorics  Electrical networks and hyperplane arrangements 
Friday, January 18, 2019 Start: 3:00 PM
Location: 4088 East Hall 
Daping Weng Michigan State University  Combinatorics  Cluster Duality of Grassmannian and a Cyclic Sieving Phenomenon of Plane Partitions 
Friday, January 25, 2019 Start: 3:00 PM
Location: 4088 East Hall 
Li Li Oakland University  Combinatorics  Frieze varieties of acyclic quivers 
Friday, February 01, 2019 Start: 3:00 PM
Location: 4088 East Hall 
Trevor Hyde University of Michigan  Combinatorics  TBA 
Friday, February 08, 2019 Start: 3:00 PM
Location: 4088 East Hall 
Melissa ShermanBennett UC Berkeley  Combinatorics  TBA 
Friday, February 22, 2019 Start: 3:00 PM
Location: 4088 East Hall 
Dylan Thurston Indiana U.  Combinatorics  TBA 
Friday, March 01, 2019

 Combinatorics  Day before spring break, likely no seminar 
Friday, March 08, 2019

 Combinatorics  Spring break, no seminar 
Friday, March 15, 2019 Start: 3:00 PM
Location: 4088 East Hall 
David Speyer University of Michigan  Combinatorics  TBA 
Friday, March 22, 2019 Start: 3:00 PM
Location: 4088 East Hall 
Christian Gaetz MIT  Combinatorics  TBA 
Friday, April 05, 2019 Start: 3:00 PM
Location: 4088 East Hall 
Jenna Rajchgot University of Saskatchewan  Combinatorics  TBA 
Friday, April 12, 2019 Start: 3:00 PM
Location: 4088 East Hall 
Eric Katz Ohio State University  Combinatorics  TBA 