Bjarne Schülke, A local version of Katona’s intersection theorem
Room B332 IBS (기초과학연구원)Katona's intersection theorem states that every intersecting family
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Dömötör Pálvölgyi, C-P3O: Orientation of convex sets and other good covers
Zoom ID: 870 0312 9412 (ibsecopro) [CLOSED]We introduce a novel definition of orientation on the triples of a family of pairwise intersecting planar convex sets and study its properties. In particular, we compare it to other systems of orientations on triples that satisfy a natural interiority condition. Such systems, P3O (partial 3-order), are a natural generalization of posets, and include the …
Sebastian Wiederrecht, Killing a vortex
Room B332 IBS (기초과학연구원)The Structural Theorem of the Graph Minors series of Robertson and Seymour asserts that, for every
Mehtaab Sawhney, Anticoncentration in Ramsey graphs and a proof of the Erdős-McKay conjecture
Zoom ID: 870 0312 9412 (ibsecopro) [CLOSED]An
Alexander Clifton, Ramsey Theory for Diffsequences
Room B332 IBS (기초과학연구원)Van der Waerden's theorem states that any coloring of
Santiago Guzmán-Pro, Local expressions of graphs classes
Zoom ID: 869 4632 6610 (ibsdimag)A common technique to characterize hereditary graph classes is to exhibit their minimal obstructions. Sometimes, the set of minimal obstructions might be infinite, or too complicated to describe. For instance, for any
Zixiang Xu (徐子翔), On the degenerate Turán problems
Room B332 IBS (기초과학연구원)For a graph
Konstantin Tikhomirov, A remark on the Ramsey number of the hypercube
Zoom ID: 870 0312 9412 (ibsecopro) [CLOSED]A well-known conjecture of Burr and Erdős asserts that the Ramsey number
Nika Salia, Exact results for generalized extremal problems forbidding an even cycle
Room B332 IBS (기초과학연구원)We determine the maximum number of copies of
Xavier Goaoc, Order types and their symmetries
Room 1501, Bldg. E6-1, KAISTOrder types are a combinatorial classification of finite point sets used in discrete and computational geometry. This talk will give an introduction to these objects and their analogue for the projective plane, with an emphasis on their symmetry groups. This is joint work with Emo Welzl.