On March 17, 2020, Dabeen Lee (이다빈) from IBS discrete mathematics group presented a talk on his result proving that the closure of a polyhedron by some generalization of the Chvátal-Gomory cuts gives a polyhedron. The title of his talk is “On a generalization of the Chvátal-Gomory closure“.
Eun-Kyung Cho (조은경) gave a talk on the problem of decomposing a graph into a d-degenerate graph and a graph of bounded maximum degree at the Discrete Math Seminar
On March 3, 2020, Eun-Kyung Cho (조은경) from Hankuk University of Foreign Studies presented a talk on the existence of a decomposition of a planar graph into two edge-disjoint subgraphs, one of which is d-degenerate and the other has maximum degree at most h at the discrete math seminar. The title of her talk was “Decomposition of a planar graph into a d-degenerate graph and a graph with maximum degree at most h“. She will visit the IBS discrete math group until March 6.
Xin Zhang (张欣) gave a talk on the problem of partitioning a graph into forests of the almost equal size at the Discrete Math Seminar
On February 25, 2020, Xin Zhang (张欣) from Xidian University, China gave a talk on the problem of equitable tree-k-coloring of graphs and its variations. The title of his talk is “On the equitable tree-coloring of graphs with low degeneracy“. He is currently visiting the IBS discrete mathematics group for 1 year until August 2020 for his sabbatical leave.
Dong Yeap Kang presented his work on random perturbed graphs at the discrete math seminar
On February 18, 2020, Dong Yeap Kang from KAIST & IBS Discrete Mathematics Group gave a talk on random perturbed graphs. The title of his talk is “Fragile minor-monotone parameters under random edge perturbation“. Dong Yeap will receive the Ph.D. degree at the end of this month from KAIST and will move to University of Birmingham, UK as a postdoc.
The registration for the conference “Seymour is Seventy” (June 15-19) is now open! The deadline for early bird registration is April 12, 2020.
The registration for the conference “Seymour is Seventy” is now open.
- Deadline for early bird registration : April 12, 2020.
- Registration fees : 250 euros (includes coffee breaks, lunches, and the banquet)
- For accompanying persons, it is possible to register only for the banquet for 70 euros
- To register, follow the link from the website https://dimag.ibs.re.kr/seymour70/
The website also has a list of suggested hotels in Lyon.
Seymour is Seventy
A conference honouring the seventieth birthday of Paul Seymour
At ENS de Lyon, France
From June 15th to June 19th, 2020.
Invited speakers
Noga Alon, Princeton University / Tel Aviv University
Maria Chudnovsky, Princeton University
Julia Chuzhoy, Toyota Technological Institute at Chicago
Gérard Cornuéjols, Carnegie Mellon University
Matt DeVos, Simon Fraser University
Guoli Ding, Louisiana State University
Jacob Fox, Stanford University
Jim Geelen, University of Waterloo
András Gyárfás, Hungarian Academy of Sciences
Alexandr V. Kostochka, University of Illinois at Urbana-Champaign
Chun-Hung Liu, Texas A&M University
Sergey Norin, McGill University
Sang-il Oum, IBS Discrete Mathematics Group / KAIST
Bruce Reed, McGill University
Alexander Schrijver, University of Amsterdam / CWI Amsterdam
Alex Scott, University of Oxford
Sophie Spirkl, Princeton University
Benny Sudakov, ETH Zurich
Stéphan Thomassé, ENS de Lyon
Carsten Thomassen, Technical University of Denmark
Kristina Vušković, University of Leeds
Paul Wollan, University of Rome “La Sapienza”
Dillon Mayhew gave a talk on analogues of Courcelle’s theorem, in particular to hypergraphs and matroids at the discrete math seminar
On January 28, 2020, Dillon Mayhew from Victoria University of Wellington, New Zealand gave a talk on problems and results motivated by Courcelle’s theorem, with an emphasis on hypergraphs and matroids. The title of his talk is “Courcelle’s Theorem for hypergraphs“.
Adam Zsolt Wagner gave a talk on an extremal problem in Z_{2^n} at the discrete math seminar
On January 20, 2020, Adam Zsolt Wagner from ETH Zurich gave a talk on the largest subset of $\mathbb Z_{2^n}$ having no projective $d$-cube. The title of his talk was “The largest projective cube-free subsets of $Z_{2^n}$“. He has been visiting IBS discrete mathematics group for a week and will leave on this Wednesday.
Ben Lund gave a talk on the problem on Furstenberg sets over field fields related to the Kakeya conjecture at the discrete math seminar
On January 15, 2020, Ben Lund from Princeton University gave a talk about a generalization of the Kakeya conjecture posed by Ellenberg, Oberlin, and Tao. The title of his talk was “Furstenberg sets over finite fields“. He is visiting the IBS discrete mathematics group until January 21, Tuesday.
Sanjeeb Dash gave a talk on the integer programming approach to the interpretable machine learning at the discrete math seminar
On January 14, 2020, Sanjeeb Dash from IBM T. J. Watson Research presented a talk on the integer programming formulation for the problem arising from the interpretable machine learning. The title of his talk was “Boolean decision rules via column generation“. He is visiting IBS Discrete Mathematics Group until the end of this week.
Welcome Sounggun Wee (위성군), a new graduate student in the IBS discrete mathematics group
The IBS discrete mathematics group welcomes Sounggun Wee (위성군), a new graduate student at the IBS discrete mathematics group since January 2020. He is currently a graduate student at the department of mathematical sciences, KAIST.