Past Meetings

In 2021, two separate meeting were held, one with Illinois and Iowa, and the other with Illinois and Montana. The speakers and their titles are given below.

May 17, 2021

Times are in CENTRAL time

  • 10:00-10:10 Felix Clemen (UIUC): Max cuts in triangle-free graphs

  • 10:12-10:22 Anna Halfpap (UM): Supersaturation and stability for generalized Turán problems

  • 10:24-10:34 Ramon Garcia (UIUC): Intersecting families of sets are typically trivial

  • 10:36- 10:46 Patrick Kreitzberg (UM): Selection on $X_1 + X_2 + \cdots + X_m$ via Cartesian product trees

  • Break

  • 11:00-11:10 Will Linz (UIUC): Short proofs of two results in extremal set theory

  • 11:12-11:22 Jack Finlay (UM): Rainbow connectivity In randomly perturbed graphs

  • 11:24-11:34 Bob Krueger (UIUC): Edge-colorings of $K_n$ where short paths have many colors

  • 11:36- 11:46 Jose Martinez (UM): A brief introduction to the perfect matching polytope

  • Break

  • 12:00-12:10 Yuzhou Wang (UIUC): Achieving a new upper bound for the determinant of sparse 0-1 matrices

  • 12:12-12:22 Ryan Wood (UM): TBA

  • 12:24-12:34 Yifan Jing (UIUC): Small measure expansions in groups

  • 12:36- 12:46 Van Magnan (UM): Reflecting on bijective methods in lattice path problems

  • Break

  • 1:00-1:10 Jaehyung Kim (UIUC): Kostka semigroups and generalized Dyck paths

  • 1:12-1:22 Gidon Orelowitz (UIUC): The Kostka semigroup and its Hilbert basis


May 24, 2021

Times are in CENTRAL time

10:00-10:10 Daniel McGinnis (ISU): Line transversals for families of planar convex sets

10:12-10:22 Emily Heath (UIUC): Strengthening the Erdős-Szekeres theorem

10:24-10:34 Liz Sprangel (ISU): Rainbow matchings in hypergraphs

10:36- 10:46 Souktik Roy (UIUC): New bounds for Sidon sets

Break

11:00-11:10 Kyle Murphy (ISU): Generalized Turán Problems

11:12-11:22 Jack Finlay (UM): Rainbow connectivity in randomly perturbed graphs

11:24-11:34 Caroline Bang (ISU): Kempe Swaps

11:36- 11:46 Xujun Liu (UIUC): Solving secretary-type problems via a combinatorial method

Break

12:00-12:10 Carolyn Reinhart (ISU): Damage throttling for the game of Cops and Robbers

12:12-12:22 Grace McCourt (UIUC): Low diameter monochromatic covers of complete multipartite graphs

12:24-12:34 Jasmine Martin (ISU): Universal cycles as Eulerian circuits

12:36- 12:46 Cassie Murley (UIUC): Weighted Ramsey-Turán problems

Break

1:00-1:10 Letícia Mattos (IMPA): Asymmetric Ramsey properties of random graphs

1:12-1:22 Shiliang Gao (UIUC): Kostka semigroup and its Hilbert basis

1:24-1:34 David Brewster (UIUC): Coxeter groups and properness