기초과학연구원 이산수학그룹
On November 30 and December 2, 2020, Joonkyung Lee (이준경) from University College London gave two online talks on the Ramsey multiplicity and common graphs at the Discrete Math Seminar organized by Jaehoon Kim at KAIST. The titles of his talks are “On Ramsey multiplicity” and “On common graphs“.
(The photo above was taken earlier in his other seminar talk.)
On December 1, 2020, Debsoumya Chakraborti from the IBS Discrete Mathematics Group presented his theorem with Po-Shen Loh about the existence of a rainbow matching of size q in a simple graph whose edges are colored properly by 2q+o(q) colors. The title of his talk was “Rainbow matchings in edge-colored simple graphs“.
On November 24, 2020, Duksang Lee (이덕상) from KAIST and the IBS Discrete Mathematics Group gave a talk on the characterization of matroids whose bases form graphic delta-matroids at the Discrete Math Seminar. The title of his talk was “Characterizing matroids whose bases form graphic delta-matroids“.
On November 19, 2020, Yijia Chen (陈翌佳) from Fudan University spoke at the Virtual Discrete Math Colloquium on the shrub-depth of graph classes. The title of his talk is “Graphs of bounded shrub-depth, through a logic lens“.
The IBS Discrete Mathematics Group had its first “DIMAG internal workshop” at Jeonju Lahan Hotel located in Jeonju Hanok Village on November 16-18, 2020. Participants include almost all current members of DIMAG and Jaehoon Kim from KAIST, and Hong Liu from University of Warwick. Every participant had a chance to present their current research problems informally.
On November 11, 2020, Meike Hatzel from Technische Universität Berlin gave an online talk on the existence of a bramble of small order and small size in a graph of tree-width k at the Virtual Discrete Math Colloquium. The title of her talk was “Constant congestion bramble“.
On November 10, 2020, Casey Tompkins from the IBS Discrete Mathematics Group presented a talk on the extremal problems on Boolean and linear lattices with forbidden posets at the Discrete Math Seminar. The title of his talk was “Extremal forbidden poset problems in Boolean and linear lattices“.
With the vision of “Making Discoveries for Humanity and Society,” the Institute for Basic Science (IBS) was founded in 2011 by the Korean government to promote basic science in Korea. To date, IBS has 31 Research Centers and each Center has been yielding outstanding results in various research fields.
The IBS “Young Scientist Fellowship” started in 2016 to play an active role in fostering the next generation of basic science leaders. We believe this Fellowship offers junior scientists opportunities to conduct independent research by utilizing state-of-the-art infrastructure and to grow on the basis of research collaborations with leading researchers.
We hope that the Fellowship serves as a stepping stone for our researchers to mature into leading researchers in basic science.
Within 7 years of obtaining a Ph.D. (obtained no earlier than 1 January 2013) or under the age of 40 with a Ph.D. (born no earlier than 1 January 1980)
※ Ph.D. candidates must be conferred with Ph.D. degrees before February 28, 2021.
※ Current IBS researchers are eligible to apply, if they meet the above criteria.
Discrete Mathematics Group has an opening for 1 YSF.
For other centers and groups, please visit the IBS website https://www.ibs.re.kr/ysf/.
※ The final number of openings may change depending on the circumstances of IBS.
Apply via the IBS website at http://www.ibs.re.kr/ysf/apply by December 13, 2020 (KST).
Talent Acquisition and Development Team at ysf@ibs.re.kr or IBS homepage at https://www.ibs.re.kr/ysf
On November 5, 2020, Daniel Cranston from Virginia Commonwealth University gave a talk on the condition of the maximum average degree for a graph to have a partition of its vertex set into an independent set and a set inducing a forest consisting of components of small size at the Virtual Discrete Math Colloquium. The title of his talk was “Vertex Partitions into an Independent Set and a Forest with Each Component Small“.
On November 3, 2020, Jaeseong Oh (오재성) from Seoul National University presented his work with Iain Moffatt on the characterization of ribbon graphs having the same delta-matroid. The title of his talk is “A 2-isomorphism theorem for delta-matroids“.