Jane Tan, Semi-strong colourings of hypergraphs
Room B332 IBS (기초과학연구원)A vertex colouring of a hypergraph is
10 events found.
Maria Chudnovsky, Anticomplete subgraphs of large treewidth
Room B332 IBS (기초과학연구원)We will discuss recent progress on the topic of induced subgraphs and tree-decompositions. In particular this talk with focus on the proof of a conjecture of Hajebi that asserts that (if we exclude a few obvious counterexamples) for every integer t, every graph with large enough treewidth contains two anticomplete induced subgraphs each of treewidth …
Semin Yoo (유세민), Paley-like quasi-random graphs arising from polynomials
Room B332 IBS (기초과학연구원)We provide new constructions of families of quasi-random graphs that behave like Paley graphs but are neither Cayley graphs nor Cayley sum graphs. These graphs give a unified perspective of studying various graphs defined by polynomials over finite fields, such as Paley graphs, Paley sum graphs, and graphs associated with Diophantine tuples and their generalizations …
Wonwoo Kang (강원우), Skein relations for punctured surfaces
Room B332 IBS (기초과학연구원)Since the introduction of cluster algebras by Fomin and Zelevinsky in 2002, there has been significant interest in cluster algebras of surface type. These algebras are particularly noteworthy due to their ability to construct various combinatorial structures like snake graphs, T-paths, and posets, which are useful for proving key structural properties such as positivity or …
Kisun Lee (이기선), Symmetric Tropical Rank 2 Matrices
Room B332 IBS (기초과학연구원)Tropical geometry replaces usual addition and multiplication with tropical addition (the min) and tropical multiplication (the sum), which offers a polyhedral interpretation of algebraic variety. This talk aims to pitch the usefulness of tropical geometry in understanding classical algebraic geometry. As an example, we introduce the tropicalization of the variety of symmetric rank 2 matrices. …
Hyunwoo Lee (이현우), Random matchings in linear hypergraphs
Room B332 IBS (기초과학연구원)For a given hypergraph
IBS-DIMAG workshop on combinatorics and geometric measure theory
Room B109 IBS (기초과학연구원)Website: https://cgmt.dimag.kr/ Arrival Date: July 14, 2024 Sunday. Departure Date: July 20, 2024 Saturday. Organizers Ben Lund (IBS Discrete Mathematics Group) Doowon Koh (Chungbuk National University) Sang-il Oum (IBS Discrete Mathematics Group / KAIST)
2024 Summer School on Combinatorics and Algorithms (2024 조합론 및 알고리즘 여름학교)
Bldg. N1, KAISTThe 2024 Summer School on Combinatorics and Algorithms is a venue for students and early-career researchers to learn selected topics in theoretical computer science and discrete mathematics. It will be a great opportunity for young and aspiring researchers to study topics which are important but not covered during the lectures in the university classes. This …
2024 Korean Student Combinatorics Workshop (KSCW2024, 2024 조합론 학생 워크샵)
Gongju Hanok Village, GongjuVenue Gongju Hanok Vilage (공주한옥마을) Organizers Donggyu Kim (김동규), KAIST and IBS Discrete Mathematics Group Seokbeom Kim (김석범), KAIST and IBS Discrete Mathematics Group Seonghyuk Im (임성혁), KAIST and IBS Extremal Combinatorics and Probability Group Hyunwoo Lee (이현우), KAIST and IBS Extremal Combinatorics and Probability Group
Euiwoong Lee (이의웅), Parameterized Approximability of F-Deletion Problems
Room B332 IBS (기초과학연구원)For a family F of graphs, the F-Deletion Problem asks to remove the minimum number of vertices from a given graph G to ensure that G belongs to F. One of the most common ways to obtain an interesting family F is to fix another family H of graphs and let F be the set …