Thu | Jun 22 | 14:15 | Isaiah Osborne | Sign Invertibility of Graphs | |

Thu | Jun 15 | 14:15 | no seminar | ---- | |

Thu | Jun 08 | 14:15 | Tianran Chen | What lattice polytopes can tell us about network of oscillators? | |

Thu | Jun 01 | 14:15 | Alex Cohen | Improved bound for Heilbronn's triangle problem and connections to projection theory | |

Thu | May 25 | 14:15 | Iván Rasskin | Connecting numbers with knots through polytopes and sphere packings | |

Thu | May 18 | 14:15 | Guillaume Laplante-Anfossi | The combinatorics of the permutahedron diagonals | |

Thu | May 11 | 14:15 | Hunter Spink | Additive combinatorics at infinity in the presence of a lattice | |

Thu | May 04 | 14:15 | Sophie Huiberts | Smoothed analysis of the simplex method | |

Thu | Apr 27 | 14:15 | Benjamin Schröter | Valuative invariants for large classes of matroids | |

Thu | Apr 20 | 14:15 | Torsten Ueckerdt | When Surrounding is not Catching in Cops and Robber | |

Thu | Apr 13 | 14:15 | Sebastian Debus | The wonderful geometry of the Vandermonde map | |

Thu | Apr 06 | 14:15 | Benjamin Jany | The direct sum of q-matroids and their decomposition into irreducible components | |

Thu | Mar 30 | 14:15 | Matthew Faust | On Irreducibility of the Bloch Variety | |

Thu | Mar 23 | 15:15 | no seminar | ---- | |

Thu | Mar 16 | 15:15 | Rosna Paul | Compatibility Graph of Spanning trees in Simple Drawings | |

Thu | Mar 09 | 15:15 | Meghana M. Reddy | On the Number of Edges in Maximal 2-planar Graphs | |

Thu | Mar 02 | 15:15 | István Tomon | Configurations of boxes | |

Thu | Feb 23 | 15:15 | Stephanie Mui | On the $L^p$ dual Minkowski problem for $−1 < p < 0$ | |

Thu | Feb 16 | 15:15 | Geunho Lim | Bounds on rho-invariants and simplicial complexity of triangulated manifolds | |

Thu | Feb 09 | 15:15 | Cosmin Pohoata | Convexity, color avoidance, and total domination | |

Thu | Feb 02 | 16:20 | Vadim Semenov | The Discrete Gauss Image Problem | |

Thu | Feb 02 | 15:15 | Vladislav Pokidkin | Discriminants of polynomial systems | |

Thu | Jan 26 | 15:15 | James Maxwell | Generalising Kapranov’s Theorem for hyperfields and RAC maps | |

Thu | Jan 19 | 15:15 | Oliver Janzer | Small subgraphs with large average degree | |

Thu | Jan 12 | 15:15 | Miruna-Ştefana Sorea | Poincaré-Reeb Graphs of Real Algebraic Domains | |

Thu | Jan 05 | 15:15 | Damian Osajda | Injective spaces, Helly graphs, and their automorphism groups | |

Thu | Dec 22 | 15:15 | Khanh Nguyen Duc | Newton polytope of good symmetric functions | |

Thu | Dec 15 | 15:15 | Nick Early | Polytopes in particle physics, starting from associahedra | |

Thu | Dec 08 | 15:15 | Daria Poliakova | 2-Associahedra and the velocity fan | |

Thu | Dec 01 | 15:15 | Ayah Almousa | Root Polytopes, Tropical Types, and Toric Edge Ideals | |

Thu | Nov 24 | 15:15 | Benjamin Nill | An update on Gorenstein polytopes : reducibility and local $h*$-polynomials | |

Thu | Nov 17 | 15:15 | Boulos El Hilany | Coupler curves of moving graphs and counting realizations of rigid graphs | |

Thu | Nov 10 | 15:15 | Eva Philippe | Sweep polytopes and sweep oriented matroids | |

Thu | Nov 03 | 15:15 | Leonid Monin | K-Theory and polytopes | |

Thu | Oct 27 | 14:15 | Søren Eilers | Chromatic numbers for contact graphs of mutually congruent cuboids | |

Thu | Oct 20 | 14:15 | Lorenzo Vecchi | Skew Young Tableaux for KL polynomials of matroids | |

Thu | Oct 13 | 14:15 | Christian Haase | Newton-Okounkov Semigroups (are often not finitely generated) | |

Thu | Oct 06 | 14:15 | Karin Baur | Cluster structures for Grassmannians | |

Thu | Sep 29 | 14:00 | Joachim Kock | From Möbius inversion to renormalisation | |

Thu | Sep 22 | 14:15 | Ruy Fabila Monroy | Token graph reconstruction in Diamond and C_4 free graphs | |

Thu | Sep 15 | 14:15 | Déborah Oliveros | Intersection Patterns and Tverberg type theorems | |

Thu | Sep 08 | 14:15 | Lisa Sauermann | Anticoncentration in Ramsey graphs and a proof of the Erdös-McKay Conjecture | |

Thu | Sep 01 | 14:15 | Alexandros Hollender | Pure-Circuit: Strong Inapproximability for PPAD | |

Thu | Aug 25 | 14:15 | Radoslav Fulek | Atomic Embeddability, Clustered Planarity, and Thickenability | |

Thu | Aug 18 | 14:15 | Mehtaab Sawhney | On low-degree dependencies for sparse random graphs | |

Thu | Aug 11 | 14:15 | Marie-Charlotte Brandenburg | Tropical Positivity and Determinantal varieties | |

Thu | Jul 14 | 14:15 | Federico Castillo | Tangent hyperplanes to convex bodies | |

Thu | Jul 07 | 14:15 | Zilin Jiang | Rainbow structures via topological methods | |

Thu | Jun 30 | 14:15 | Jean Cardinal | Diameter estimates for graph associahedra | |

Thu | Jun 23 | 14:15 | Soohyun Park | Anti-Ramsey theory, lattice points on polytopes, and Hodge structures on toric hypersurfaces | |

Thu | Jun 09 | 14:15 | Shira Zerbib | KKM-type theorems and their applications | |

Thu | Jun 02 | 14:15 | Mathilde Bouvel | Limits of permutations and graphs avoiding substructures | |

Thu | May 26 | 14:15 | Jesus de Loera | On Polyhedra Parametrizing ALL pivot rules for the Simplex Method | |

Thu | May 19 | 14:15 | Erika Roldan | Parity Property of Hexagonal Sliding Puzzles | |

Thu | May 12 | 14:15 | Yelena Yuditsky | Weak Coloring Numbers of Intersection Graphs | |

Thu | May 05 | 14:15 | Roman Karasev | Covering by planks and avoiding zeros of polynomials | |

Thu | Apr 28 | 14:15 | Andrew Suk | Unavoidable patterns in simple topological graphs | |

Thu | Apr 21 | 14:15 | Amita Malik | Partitions into primes with a Chebotarev condition | |

Thu | Apr 14 | 14:15 | Jamie Tucker-Foltz | Political Redistricting, Graph Partition Sampling, and Counting Spanning Trees | |

Thu | Apr 07 | 14:15 | Simon Machado | When are discrete subsets of Lie groups approximate subgroups ? Around a theorem of Lagarias. | |

Thu | Mar 31 | 14:15 | Lorenzo Venturello | Gorenstein algebras from simplicial complexes | |

Thu | Mar 24 | 15:15 | Ashwin Sah | High-Girth Steiner Triple Systems | |

Thu | Mar 17 | 15:15 | Samuel Lundqvist | The Fröberg conjecture and some questions on powers of general linear forms | |

Thu | Mar 10 | 15:15 | Adam Sheffer | A structural Szemerédi–Trotter theorem for cartesian products | |

Thu | Mar 03 | 15:15 | Shubhangi Saraf | Factors of sparse polynomials: structural results and some algorithms | |

Thu | Feb 24 | 15:15 | Marija Jelić Milutinović | Matching complexes of graphs | |

Thu | Feb 17 | 16:15 | Alan Lew | Leray numbers of tolerance complexes | |

Thu | Feb 17 | 15:15 | Alexander Clifton | Ramsey Theory for Diffsequences | |

Thu | Feb 10 | 15:15 | Miloš Trujić | Two problems in (size-)Ramsey theory | |

Thu | Feb 03 | 15:15 | Laura Escobar | The harmonic polytope | |

Thu | Jan 27 | 17:15 | Lei Xue | A Proof of Grünbaum’s Lower Bound Conjecture for polytopes, lattices, and strongly regular pseudomanifolds. | |

Thu | Jan 27 | 16:15 | Anschel Schaffer-Cohen | Automorphisms of the loop and arc graph of an infinite-type surface | |

Thu | Jan 27 | 15:15 | William Gustafson | Lattice minors and Eulerian posets | |

Thu | Jan 20 | 15:15 | Shubhangi Saraf | Factors of sparse polynomials: structural results and some algorithms | |

Thu | Jan 13 | 15:15 | Sophie Spirkl | New results on polynomial $\chi$-boundedness | |

Thu | Jan 06 | 16:15 | Ana Chavez Caliz | Projective self-dual polygons | |

Thu | Jan 06 | 15:15 | Arina Voorhaar | On the Newton Polytope of the Morse Discriminant | |

Thu | Dec 16 | 15:15 | Jozsef Solymosi | Rank of matrices with entries from a multiplicative group | |

Wed | Dec 15 | 15:15 | Giorgis Petridis | Small progress towards the Paley graph conjecture | |

Thu | Dec 09 | 15:00 | Matt Baker | The Foundation of a Matroid | |

Thu | Dec 02 | 15:15 | Henry Adams | Bounding Gromov-Hausdorff distances with Borsuk-Ulam theorems and Vietoris-Rips complexes | |

Thu | Nov 25 | 15:15 | Nina Kamcev | Common systems of equations are rare | |

Thu | Nov 18 | 15:15 | Victor Reiner | Topology of augmented Bergman complexes | |

Thu | Nov 11 | 15:15 | Mats Boij | Lefschetz Properties | |

Thu | Nov 04 | 17:00 | Igor Pak | Log-concave poset inequalities | |

Thu | Nov 04 | 15:15 | Xavier Goaoc | Concentration in order types of random point sets | |

Thu | Oct 28 | 14:15 | Jean-Philippe Labbé | Lineup polytopes and applications in quantum physics | |

Thu | Oct 21 | 14:15 | Christopher Eur | Tautological classes of matroids | |

Thu | Oct 14 | 14:15 | Arnau Padrol | The convex dimension of hypergraphs and the hypersimplicial Van Kampen-Flores Theorem | |

Thu | Oct 07 | 14:15 | Thang Pham | Point-sphere incidence bounds in finite spaces | |

Thu | Sep 30 | 14:15 | Michael Simkin | The number of $n$-queens configurations | |

Thu | Sep 23 | 14:15 | Georgios Petridis | The q-analogue of almost orthogonal sets | |

Thu | Sep 09 | 14:15 | Alexandra Wesolek | Graph Drawings and Graph Limits | |

Thu | Sep 02 | 14:15 | Shoham Letzter | Tight cycles in hypergraphs | |

Thu | Jul 15 | 14:15 | Hunter Spink | Geometric and o-minimal Littlewood-Offord problems | |

Thu | Jul 08 | 14:15 | Natan Rubin | Stronger bounds for weak epsilon-nets in higher dimensions | |

Thu | Jul 01 | 14:15 | Matthew Kwan | Friendly bisections of random graphs | |

Thu | Jun 24 | 14:15 | Miloš Stojakovic | Dealing with bichromatic non-crossing matchings | |

Thu | Jun 17 | 14:15 | Linda Kleist | On a Problem from Outer Space: Minimum Scan Covers | |

Thu | Jun 10 | 14:15 | Oswin Aichholzer | Order Types, Rotation Systems, and Crossing Numbers of $K_n$ | |

Thu | Jun 03 | 14:15 | Victor Batyrev | Combinatorics of lattice polytopes and MMP | |

Thu | May 27 | 14:00 | Chaya Keller | On multicolor Ramsey numbers and subset-coloring of hypergraphs | |

Thu | May 20 | 14:00 | Marc Lackenby | Unknot recognition in quasi-polynomial time | |

Thu | May 13 | 14:00 | Sean Eberhard | TBA | |

Thu | May 06 | 14:00 | Torsten Mütze | Combinatorial generation via permutation languages | |

Thu | Apr 29 | 14:00 | Yufei Zhao | The geometry of transitive sets, with applications to eigenbasis of Cayley graphs | |

Thu | Apr 22 | 14:00 | Stefan Felsner | Combinatorics of Pseudocircle Arrangements | |

Thu | Apr 08 | 14:00 | Sarah Peluse | Modular zeros in the character table of the symmetric group | |

Thu | Mar 25 | 15:00 | Pablo Soberon | Tverberg's theorem beyond prime powers | |

Thu | Mar 18 | 15:15 | Lukas Kühne | Investigating Terao's freeness conjecture with computer algebra | |

Thu | Mar 11 | 15:00 | Irene Parada | Inserting edges into simple drawings | |

Thu | Mar 04 | 15:00 | Pilar Cano | Flips in higher order Delaunay triangulations | |

Thu | Feb 25 | 15:00 | Vasso Petrotou | Tom & Jerry triples | |

Thu | Feb 18 | 15:00 | Martin Tancer | The unbearable hardness of unknotting | |

Thu | Feb 11 | 15:00 | Sebastian Manecke | Inscribable fans, zonotopes, and reflection arrangements | |

Thu | Feb 04 | 15:00 | Bruno Benedetti | A d-dimensional version of interval graphs, of Hamiltonian paths, and of binomial edge ideals | |

Thu | Jan 28 | 15:00 | Man-Wai Cheung | Compactifications of cluster varieties and convexity | |

Thu | Jan 21 | 15:00 | Manfred Scheucher | Using SAT Solvers in Combinatorics and Geometry | |