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Combinatorics and Geometry Seminar

UW Combinatorics and Geometry Seminar meets in Padelford C-401 on Wednesdays, 4:10pm-5:10pm, and is preceded by the pre-seminar, 3:30pm-4:00pm.

Further details can be found at https://sites.math.washington.edu/~combinat/

Past Events

Unfolding Mathematics at Burning Man (Satyan Devadoss, University of San Diego) - March 4, 2019
Involution graph Schubert varieties (Brendan Pawlowski, University of Southern California) - February 27, 2019
TBA (Julianna Tymoczko, Smith College) - February 20, 2019
2-associahedra (Nathaniel Bottman, Institute for Advanced Study) - February 13, 2019
Local constructions of manifolds (Bruno Benedetti, University of Miami) - February 6, 2019
Characterization of Queer Supercrystals. (Graham Hawkes, UC Davis) - January 30, 2019
Closed Singular Geodesics on Platonic Solids (Jayadev Athreya, UW) - January 16, 2019
Enumerating spanning trees in bipartite graphs (Steve Klee, Seattle University) - December 5, 2018
Minimal Obstructions to Convexity in Combinatorial Codes (Amzi Jeffs, University of Washington) - November 28, 2018
Completely log concave polynomials and Mason’s log concavity conjecture (Shayan Oveis Gharan, University of Washington) - November 14, 2018
The slack realization space of a polytope (Amy Wiebe) - November 7, 2018
A Simply Exponential Upper Bound on the Maximum Number of Stable Matchings (Anna Karlin, University of Washington) - October 31, 2018
Graded Expectations: An Invitation to Probabilistic Commutative Algebra (Matthew Stamps, Yale-NUS College) - October 24, 2018
Decomposing k-fold acyclic complexes (Bennet Goeckner, University of Washington) - October 17, 2018
The Unit-distance graph and the Odd-distance graph (Moshe Rosenfeld, University of Washington, Tacoma) - October 10, 2018
Chromatic quasisymmetric functions and regular semisimple Hessenberg varieties (John Shareshian, Washington University in St. Louis) - October 3, 2018
Sandpiles, (un)decidability, and mod 1 harmonic functions (Lionel Levine, Cornell University) - August 28, 2018
Splitting Loops and Necklaces: Variants of the Square Peg Problem (Florian Frick, Cornell University) - July 9, 2018
Refinement of partition identities (Jehanne Dousse, Universität Zürich) - June 18, 2018
The Combinatorics of Macdonald Polynomial Operators (Jim Haglund, University of Pennsylvania) - May 30, 2018
Major Index Statistics: Cyclic Sieving, Branching Rules, and Asymptotics (Josh Swanson, University of Washington) - May 23, 2018
The conjugacy action of S_n and variations on the module Lie_n (Sheila Sundaram, Pierrepont School) - May 16, 2018
Matroid h-vectors (José Samper, University of Miami) - May 9, 2018
Symmetric functions, towers of algebras, and Heisenberg categories (Henry Kvinge, University of California, Davis) - May 2, 2018
Forbidden Configurations in Discrete Geometry (David Epstein, University of California, Irvine) - April 25, 2018
Staircase diagrams and the enumeration of smooth affine permutations (Ed Richmond, Oklahoma State University) - April 18, 2018
CLT for descents in conjugacy classes of S_n (Gene Kim, University of Southern California) - April 11, 2018
Singularities of K-orbit closures and interval pattern avoidance (Ben Wyser, Oklahoma State University) - April 4, 2018
(Pre-seminar) Subvarieties of the flag variety, smoothness, and patterns (Ben Wyser, Oklahoma State University) - April 4, 2018
Taking the long way home: Orbits of plane partitions (Oliver Pechenik, University of Michigan) - March 28, 2018
Statistics and Computing by Counting Inversions (Marina Meila, University of Washington) - March 7, 2018
(AAG Seminar) Cohomology of cluster varieties (David Speyer, University of Michigan) - March 6, 2018
Ideals of QSym, shuffle-compatibility and exterior peaks (Darij Grinberg, University of Minnesota) - February 28, 2018
Shuffle-Compatible Permutation Statistics (Yan Zhuang, Brandeis University) - February 21, 2018
On the Circuit Diameter Conjecture (Tamon Stephen, Simon Fraser University) - February 14, 2018
Rational smoothness and pattern avoidance for arbitrary involutions (Monty McGovern, University of Washington) - February 7, 2018
Reflection length in affine reflection groups (Joel Lewis, George Washington University) - January 31, 2018
Projectively consistent random walks on a space of trees with integer edge weights (Noah Forman, University of Washington) - January 24, 2018
Dual braid monoids, Koszul algebras, and clusters (Philippe Nadeau, CNRS & Université Lyon 1) - January 17, 2018
Prism Tableaux and Alternating Sign Matrices (Anna Weigandt, University of Illinois at Urbana-Champaign) - January 11, 2018
Prism Tableaux and Alternating Sign Matrices (Pre-Seminar) (Anna Weigandt, University of Illinois at Urbana-Champaign) - January 10, 2018
Noncommutative Schur functions, Fomin-Greene monoids and LR coefficients (Vasu Tewari, University of Washington) - December 6, 2017
The combinatorics of symmetric quotient rings (Andy Wilson, University of Pennsylvania) - November 29, 2017
'Probabilyzing' Parking Functions (Persi Diaconis, Stanford University) - November 20, 2017
Gram’s relation, cone valuations, and combinatorics (Raman Sanyal, Goethe-University Frankfurt) - November 15, 2017
Tight and stacked triangulations of manifolds (Basudeb Datta, Indian Institute of Science) - November 8, 2017
Descent polynomials (Bruce Sagan, Michigan State University) - November 2, 2017
Generalized Permutohedra from Probabilistic Graphical Models (Josephine Yu, Georgia Institute of Technology) - October 25, 2017
The geometry of scheduling (Carly Klivans, Brown University) - October 18, 2017
The Peterson Isomorphism: Moduli of Curves and Alcove Walks (Elizabeth Milicevic, Haverford College) - October 11, 2017
A crystal-like structure on shifted tableaux (Jake Levinson, University of Washington) - October 4, 2017
Affine Robinson-Schensted and affine dual equivalence graphs ( Pavlo Pylyavskyy, University of Minnesota-Twin Cities) - September 27, 2017
Matroid Kazhdan-Lusztig polynomials (Max Wakefield, USNA) - August 3, 2017
Cyclic descents of standard Young tableaux (Yuval Roichman, Bar-Ilan University) - July 6, 2017
A characterization of simplicial manifolds with g2 ≤ 2 (Hailun Zheng, University of Washington) - July 3, 2017
On a hierarchy of Hopf monoids related to matroid theory (José Alejandro Samper, University of Miami) - May 31, 2017
An Introduction to Species and Operads (Jonathan Beardsley, University of Washington) - May 24, 2017
Schur positivity and ascent-descent statistics on labeled binary trees (Sean Griffin, University of Washington) - May 17, 2017
Thieves and high-dimensional necklaces (Pablo Soberón, Northeastern University) - May 10, 2017
Chromatic bases for symmetric functions (Samantha Dahlberg, University of British Columbia) - May 3, 2017
Rhombic tilings and Bott-Samelson varieties (Escobar Vega, Laura, UIUC) - April 26, 2017
A Gröbner basis for the graph of the reciprocal plane (Alex Fink, Queen Mary University of London) - April 19, 2017
Intersecting Families of Permutations (Michelle Delcourt, University of Illinois at Urbana-Champaign) - March 8, 2017
A crystal structure on shifted tableaux, with applications to type B Schubert curves (Maria Gillespie, UC Davis) - March 1, 2017
Confluence and near-confluence (Jim Propp, University of Massachusetts Lowell) - February 22, 2017
On the Existence of Tableaux with Given Modular Major Index (Josh Swanson, University of Washington) - February 8, 2017
Deformation Cones for Polytopes (Federico Castillo, UC Davis) - February 1, 2017
K-Theory and Monodromy of Schubert Curves - January 25, 2017
Chromatic numbers of stable Kneser hypergraphs - January 18, 2017
Greg Warrington, University of Vermont - January 11, 2017

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