6 events found.
Events
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Room B332 IBS (기초과학연구원)
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Gabriëlle Zwaneveld, On Seymour-tight orientations
Room B332 IBS (기초과학연구원)I discuss 'almost counterexamples' to Seymour's second neighbourhood conjecture. In what we call Seymour-tight orientations, the size of the first neighbourhood of each vertex equals the size of its second …
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David Wood, Proof of the Clustered Hadwiger Conjecture
Room B332 IBS (기초과학연구원)Hadwiger famously conjectured that every $K_h$-minor-free graph is properly $(h-1)$-colourable. This talk will present the following improper analogue of Hadwiger's Conjecture: for fixed $h$, every $K_h$-minor-free graph is $(h-1)$-colourable with …
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Daniel McGinnis, Multi-generic initial ideals, regularity, and the optimal colorful fractional Helly theorem for $d$-Leray complexes
Room B332 IBS (기초과학연구원)A celebrated result of Bayer and Stillman from 1987 states that for a homogeneous ideal $I$ of a polynomial ring $S$, the regularities of $S/I$ and $S/\textrm{GIN}(I)$ are the same …
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Julien Codsi, Recent progress in the tree-⍺ world
Room B332 IBS (기초과학연구원)Treewidth is a graph parameter commonly used to quantify how "close" a graph is to a tree. Although it is a cornerstone of structural graph theory and algorithm design, it …
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2026 Combinatorics Workshop (2026 조합론 학술대회)
Konjiam Resort, EW Village, B2, Meeting Room OPUS2Combinatorics Workshop (조합론 학술대회) is an annual conference for researchers in combinatorics and related areas in Korea. It was started in 2004 by the Yonsei University BK21 Research Group. Since …