IBS Virtual Discrete Math Colloquium

computer science theory combinatorics

Audience:	Researchers in the topic
Seminar series times:	Thursday 07:30-08:30, Friday 01:00-02:00 in your time zone, UTC
Organizer:	O-joung Kwon*
Curator:	Sang-il Oum*
	*contact for this listing

Please check the website for the abstract and the Zoom password.

Upcoming talks

Past talks

Your time			Speaker	Title
Thu	Jan 27	07:30	Bo Ning	Substructures and eigenvalues of graphs: Triangles and quadrilaterals

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Your time			Speaker	Title
Thu	Jan 20	07:30	Ken-ichi Kawarabayashi	Toward Directed Graph Minor Theory
Thu	Jan 13	07:30	Ron Aharoni	A strong version of the Caccetta-Haggkvist conjecture
Thu	Dec 09	07:30	David Munhá Correia	Rainbow matchings
Thu	Nov 25	07:30	Tuukka Korhonen	Fast FPT-Approximation of Branchwidth
Thu	Nov 11	07:30	Sebastian Wiederrecht	Matching Minors in Bipartite Graphs
Fri	Nov 05	07:30	Martin Milanič	Tree Decompositions with Bounded Independence Number
Fri	Oct 08	01:00	Paul Seymour	Polynomial bounds for chromatic number
Thu	Sep 30	07:30	Péter Pál Pach	The Alon-Jaeger-Tarsi conjecture via group ring identities
Wed	Aug 18	08:00	Petr Hliněný	Twin-width is linear in the poset width
Wed	Jul 28	06:00	Maria Chudnovsky	Induced subgraphs and tree decompositions
Wed	Jul 14	08:00	Stefan Weltge	Integer programs with bounded subdeterminants and two nonzeros per row
Wed	Jun 30	08:00	Florian Gut and Attila Joó	Large vertex-flames in uncountable digraphs
Wed	Jun 16	08:00	Alan Lew	Representability and boxicity of simplicial complexes
Wed	Jun 02	08:00	Adam Zsolt Wagner	Constructions in combinatorics via neural networks
Wed	May 26	08:00	Dimitrios M. Thilikos	Bounding Obstructions sets: the cases of apices of minor closed classes
Fri	May 21	08:00	Benjamin Bumpus	Directed branch-width: A directed analogue of tree-width
Wed	May 12	08:00	Johannes Carmesin	A Whitney type theorem for surfaces: characterising graphs with locally planar embeddings
Thu	May 06	01:00	Raul Lopes	Adapting the Directed Grid Theorem into an FPT Algorithm
Wed	Apr 21	08:00	Reinhard Diestel	Tangles of set separations: a novel clustering method and type recognition in machine learning
Wed	Apr 14	08:00	István Tomon	Ramsey properties of semilinear graphs
Wed	Apr 07	08:00	Michał Pilipczuk	Structural properties of powers of sparse graphs
Thu	Apr 01	01:00	Sophie Spirkl	Pure pairs in ordered graphs
Wed	Mar 24	08:00	Édouard Bonnet	Twin-width and ordered binary structures
Wed	Mar 17	08:00	Yixin Cao	Recognizing (unit) interval graphs by zigzag graph searches
Wed	Feb 17	01:00	David Wood	Tree densities of sparse graph classes
Wed	Feb 10	07:30	Jie Ma	Non-repeated cycle lengths and Sidon sequences
Wed	Feb 03	07:30	Ron Aharoni	Colorful KKM and multiple cakes division
Wed	Jan 27	01:00	Dong Yeap Kang	A proof of the Erdős-Faber-Lovász conjecture
Wed	Jan 20	07:30	Yusuke Kobayashi	An FPT Algorithm for Minimum Additive Spanner Problem
Wed	Jan 13	01:00	Rose McCarty	TBA
Wed	Dec 30	01:00	Paul Seymour	The Erdős-Hajnal conjecture is true for excluding a five-cycle
Thu	Dec 17	01:00	Jaiung Jun	On the Hopf algebra of multi-complexes
Wed	Dec 09	07:30	Karl Heuer	Even Circuits in Oriented Matroids
Thu	Dec 03	07:30	Deniz Sarikaya	What means Hamiltonicity for infinite graphs and how to force it via forbidden induced subgraphs
Thu	Nov 26	01:00	Da Qi Chen	Bipartite saturation
Thu	Nov 19	07:30	Yijia Chen	Graphs of bounded shrub-depth, through a logic lens
Wed	Nov 11	07:30	Meike Hatzel	Constant congestion bramble
Thu	Nov 05	01:00	Daniel Cranston	Vertex Partitions into an Independent Set and a Forest with Each Component Small
Thu	Oct 22	01:00	Chun-Hung Liu	Asymptotic dimension of minor-closed families and beyond
Thu	Sep 24	01:00	Zihan Tan	Towards Tight(er) Bounds for the Excluded Grid Theorem
Thu	Sep 17	01:00	Luke Postle	Further progress towards Hadwiger’s conjecture
Thu	Sep 10	08:10	Sebastian Siebertz	Rank-width meets stability
Wed	Aug 26	01:30	Nick Brettell	On the graph width parameter mim-width
Wed	Aug 19	07:30	Gwenaël Joret	Packing and covering balls in graphs excluding a minor
Wed	Aug 05	07:30	Robert Ganian	Solving Integer Linear Programs by Exploiting Variable-Constraint Interactions
Wed	Jul 29	07:30	Akanksha Agrawal	Polynomial Kernel for Interval Vertex Deletion
Wed	Jul 22	07:30	Paloma T. Lima	Graph square roots of small distance from degree one graphs

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