Algebraic and enumerative combinatorics seminar

We view algebraic combinatorics broadly, explictly including algebraic enumeration and related asymptotic and bijective combinatorics as well as algebraic combinatorics as it appears in pure algebra and in applications outside mathematics.

We are trying having a pre-seminar which is designed to get participants up to speed on useful and interesting background for the talk. It will be at the level for beginning grad students. Then there will be a short coffee break followed by the seminar itself.

Our audience consists principally of combinatorics faculty and grad students. Seminar talks are 50 minutes with questions following.

If you are speaking, we need your abstract at least a week in advance so it can make the deadline for the Friday math faculty seminar mailing.

Spring 2024

The regular seminar location is MC 6029. The regular seminar time is

• Pre-seminar 1pm-1:45pm on Thursdays.
• Seminar 2pm-3pm on Thursdays.

Schedule:

• May 16: Sarah Brouner
• May 23: Li Yu
• May 30: Jette Gutzeit
• June 6: Tia Ruza
• June 13:
• June 20:
• June 27:
• July 4:
• July 11:
• July 18:
• July 25: no seminar on account of FPSAC

Winter 2024

The regular seminar location is MC 5479. The regular seminar time is

• Pre-seminar 1pm-1:45pm on Thursdays.
• Seminar 2pm-3pm on Thursdays.

Schedule:

• January 25: Santiago Estupinan, A new shifted Littlewood-Richardson rule.
• February 1: Arad Nasiri, Combinatorial Action in Causal Set Quantum Gravity
• February 8: Tim Miller, Vertex models for the product of a Schur and Demazure polynomial
• February 15: Karen Yeats, More Martin and c₂ details
• February 22: Reading week
• February 29: Leo Jiang Real matroid Schubert varieties, zonotopes, and virtual Weyl group
• March 7: social time
• March 14: Nancy Wallace, Quasi-partition algebras representations, planar Quasi-partition algebras and Characters of the Motzkin-Riordan algebra
• March 21: Nathan Pagliaroli, Colored unstable map enumeration from random noncommutative geometries
• March 28: Harper Niergarth, On the faces of the Kunz cone and the numerical semigroups within them
• April 4: Olya Mandelshtam, A new formula for the symmetric Macdonald polynomials via the ASEP and TAZRP
• April 11: Alex Kroitor, Lattice Paths Through ACSV
• April 18: Jeremy Chizewer, Analytic Methods and Combinatorial Plants

Fall 2023

The regular seminar location is MC 6029. The regular seminar time is

• Pre-seminar 1pm-1:45pm on Thursdays.
• Seminar 2pm-3pm on Thursdays.

Schedule:

• September 14: Tianyi Yu, Analogue of Fomin-Stanley algebra on bumpless pipedreams.
• September 21: Jeremy Chizewer, The Sunflower Problem: Restricted Intersections.
• September 28: Kartik Singh, Closure of Deodhar components.
• October 5: Karen Yeats, Diagrammatic boundary calculus for Wilson loop diagrams
• October 12: Reading week, no seminar
• October 19: Vasu Tewari, Forest polynomials and harmonics for the ideal of quasisymmetric polynomials
• October 26: David Wagner, Higher-order correlation inequalities for random spanning trees.
• November 2: Jeronimo Valencia, Snake decompositions of lattice path matroids.
• November 9: Spencer Daugherty, Extended Schur functions and bases related by involutions.
• November 16: Alejandro Morales, Linear relations and Lorentzian property of chromatic symmetric functions
• November 23: Jason Bell, Filtered deformations of commutative algebras. Note, no pre-seminar this week
• November 30: Kelvin Chan, Polarization operators in superspace