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Michael Savery gave an online talk on finding a graph of huge chromatic number such that every induced subgraph of large chromatic number has an induced copy of a fixed subgraph at the Virtual Discrete Math Colloquium

On April 27, 2022, Michael Savery from the Oxford University gave an online talk at the Virtual Discrete Math Colloquium on finding a graph of huge chromatic number such that every induced subgraph of large chromatic number has an induced copy of a fixed subgraph at the Virtual Discrete Math Colloquium. The title of his talk was “Induced subgraphs of induced subgraphs of large chromatic number“.

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Jakub Gajarský gave an online talk on the FO model checking on Interpretations of Classes of Bounded Local Clique-width at the Virtual Discrete Math Colloquium

On April 13, 2022, Jakub Gajarský from the University of Warsaw gave an online talk at the Virtual Discrete Math Colloquium on the FO model checking on interpretations of classes of graphs of bounded local clique-width. The title of his talk was “Model Checking on Interpretations of Classes of Bounded Local Clique-Width“.

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The ECOPRO Opening Conference was held online from April 4 to April 6

To celebrate the opening of the IBS Extremal Combinatorics and Probability Group, the IBS ECOPRO Opening Conference was held online from April 4 to April 6. There were 10 invited speakers and more than 100 participants.

Day 1: April 4 Monday

Jeong Han Kim, 7:15-8:00pm
Majority dynamics on sparse random graphs

Oleg Pikhurko, 8:00-8:45pm
Moser-Tardos Algorithm with small number of random bits

Jeff Kahn, 8:45-9:30pm
Linear cover time is exponentially unlikely

Noga Alon, 9:30-10:15pm
Random processes of graphs and permutations

Day 2: April 5 Tuesday

Mihyun Kang, 8:00-8:45pm
Random subgraphs of the hypercube

József Balogh, 8:45-9:30pm
On Robustness of The Erdős-Ko-Rado Theorem

Benny Sudakov, 9:30-10:15pm
Short proofs of rainbow matching results

Day 3: April 6 Wednesday

Van Vu, 8:00-8:45pm/1:00-1:45pm/7:00-7:45am
Majority dynamics on a random graph: The power of few

Tibor Szabó, 8:45-9:30pm
Topology at the North Pole

Nati Linial, 9:30-10:15pm
Geodesic Geometry of Graphs

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Hong Liu is appointed as the CI of the new group, “IBS Extremal Combinatorics and Probability Group (ECOPRO)” as of April 1

On April 1, 2022, Hong Liu from the University of Warwick is appointed as the Chief Investigator to lead a new group, the IBS Extremal Combinatorics and Probability Group (ECOPRO), in the Center for Mathematical and Computational Sciences. To enhance our collaboration, the IBS Discrete Mathematics Group will move to the 3rd floor of the theory building on April 19-21 to share the space with the Extremal Combinatorics and Probability Group.

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Jean-Florent Raymond gave an online talk on the maximum length of an induced path in a graph having a long path at the Virtual Discrete Math Colloquium

On March 30, 2022, Jean-Florent Raymond from LIMOS, CNRS, France gave an online talk at the Virtual Discrete Math Colloquium on the maximum length of an induced path in a graph having a long path when the graph has bounded path-width, tree-width, or excludes a fixed topological minor. The title of his talk was “Long induced paths in minor-closed graph classes and beyond“.

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Ben Lund gave a talk on the threshold function for a random subset of a finite vector space to have certain intersection properties with all m-dimensional affine subspaces at the Discrete Math Seminar

On March 28, 2022, Ben Lund from the IBS Discrete Mathematics Group gave a talk at the Discrete Math Seminar on the threshold function for a random subset of a finite vector space to have certain intersection properties with all m-dimensional affine subspaces at the Discrete Math Seminar. The title of his talk was “Thresholds for incidence properties in finite vector spaces“.

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The MATRIX-IBS Workshop “Structural Graph Theory Downunder II” was held from March 20 to March 27

The MATRIX-IBS Workshop “Structural Graph Theory Downunder II” was held from March 20 to March 27 at Creswick, Victoria, Australia. This program is supported by MATRIX and the Discrete Mathematics Group (DIMAG) of the Institute for Basic Science (IBS, Korea). MATRIX is a residential research institute for the mathematical sciences in Australia.

Participants

  • Rutger Campbell (IBS Discrete Mathematics Group, Korea)
  • Katie Clinch (University of Melbourne, Australia)
  • Marc Distel (Monash University, Australia)
  • Jackson Goerner (Monash University, Australia)
  • Pascal Gollin (IBS Discrete Mathematics Group, Korea)
  • Daniel Harvey (Ballarat, Australia)
  • Kevin Hendrey (IBS Discrete Mathematics Group, Korea)
  • Robert Hickingbotham (Monash University, Australia)
  • Tony Huynh (Monash University, Australia)
  • Thomas Lesgourges (UNSW Sydney, Australia)
  • Freddie Illingworth (University of Oxford, UK)
  • Bojan Mohar (Simon Fraser University, Canada)
  • Michael Payne (La Trobe University, Australia)
  • Youri Tamitegama (University of Oxford, UK)
  • Jane Tan (University of Oxford, UK)
  • David Wood (Monash University, Australia)

Organizers

  • David Wood (Monash University, Australia)
  • Tony Huynh (Monash University, Australia)
  • Sang-il Oum (KAIST and Institute for Basic Science, Korea)
  • Alex Scott (University of Oxford, UK)
  • Liana Yepremyan (Emory University, USA)

IBS 이산수학그룹 Discrete Mathematics Group
기초과학연구원 수리및계산과학연구단 이산수학그룹
대전 유성구 엑스포로 55 (우) 34126
IBS Discrete Mathematics Group (DIMAG)
Institute for Basic Science (IBS)
55 Expo-ro Yuseong-gu Daejeon 34126 South Korea
E-mail: dimag@ibs.re.kr, Fax: +82-42-878-9209
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