UMN Student Combinatorics & Algebra Seminar
September 7: No seminar
September 21: Pouya Layeghi (UMN), "Homotopy Path Algebras and Koszulity"
September 28: Yuxuan Sun (UMN), "Crystal Chute Moves on Pipe Dreams"
October 5: Lilly Webster (UMN), "A Brief Introduction to Cluster Algebras"
October 12: Jesse Kim (UCSD), "Combinatorial spiders and their webs"
October 19: Robbie Angarone (UMN), "Totally nonnegative matrices and real-rooted polynomials in combinatorics"
October 26: Suki Dasher (UMN), "An Introduction to Lie (Super)algebras, Quantum Groups, and Combinatorial Representation Theory"
November 2: Emily Gullerud (UMN), "Simplicial complexes for group cohomology"
November 9: Anastasia Nathanson (UMN), "Matroids, posets, and their simplicial complexes"
November 16: Kayla Wright (UMN), "Path Algebras and Module Categories"
November 23: No seminar - Happy Thanksgiving! 🦃
November 30: No seminar
December 7: 🐘❓🎁 White Elephant Talk Exchange 🎁❓🐘
January 26: Theo Douvroupoulos (University of Massachusets, Amherst) "Recursions and Proofs in Coxeter-Catalan combinatorics: A précis"
February 2: Anastasia Nathanson (University of Minnesota) "Permutation action on the Chow ring of a matroid: a bande d'annonce"
February 9: Leonid Rybnikov (Harvard) "Spatial Polygons and Representations of SL(2)"
February 16: Trevor Karn (University of Minnesota) "Combinatorial formulas for paving matroid Kazhdan--Lusztig polynomials: à l’envers"
February 23: Moriah Elkin (University of Minnesota) "Twists of Grassmannian Cluster Variables: présentation indépendante"
March 2: Sean Griffin (UC Davis) "Springer fibers: avec tableaux"
March 9: Spring Break
March 16: Mahrud Sayrafi (University of Minnesota) "The Polytope, the Toric Variety, and the Line Bundle: un conte fan-tastique"
March 23: Yibo Gao (University of Michigan) "Establishing the Sperner property of partially ordered sets"
March 30: Sheila Sundaram (Pierrepont School) "Homotopy and Homology of order complexes of posets"
April 6: Dorian Smith (University of Minnesota) "Sandpile Groups of Cones Over Trees"
April 13: Tianyuan Xu (Haverford College) "Fully commutative Kazhdan–Lustig cells"
April 20: Son Nguyen (University of Minnesota) "Bender-Knuth Involutions on Linear Extensions of Posets: groupe de cactus"
April 27: Professor Talk Exchange featuring Michelle Chu, Tyler Lawson, Pasha Pylyavskyy, Vic Reiner, and Peter Webb
September 15: Lightning Talks by Robbie Angarone, Patty Commins, Trevor Karn, Sasha Pevzner, Mahrud Sayrafi, Kayla Wright, & Sylvester Zhang
September 22: Sylvester Zhang (University of Minnesota), "Expansion Formulas for Surface Cluster Algebras"
September 29: Kaelyn Willingham (University of Minnesota), "How Deep Learning Algorithms can help answer Combinatorial Questions"
October 6: Marta Pavelka (University of Miami), "Topology and Geometry in Combinatorics"
October 13: Katie Bruegge (University of Kentucky), "Lattice Polytopes and their Properties"
October 20: Harper Niergarth (University of Minnesota), "Spectral Faux Trees"
October 27: Patty Commins (University of Minnesota), "Group Actions on Partially Ordered Sets"
November 3: Kayla Wright (University of Minnesota), "What the Hecc is a Cluster Algebra?"
November 10: Carolyn Stephen (University of Minnesota) "Cluster Algebras and Root Systems"
November 17: Stephen Lacina (University of Oregon) "Lexicographic Shellability of Posets"
November 24: thankful for our speakers 🦃🍁👨👨👦👦
December 1: Lina Liu (University of Minnesota)
December 8: White Elephant Talk Exchange featuring Robbie Angarone, David DeMark, Moriah Elkin, Trevor Karn, Aaron Li, Joe McDonough, Riley O'Neill, Carolyn Stephen, and Lilly Webster