상일
sioum.bsky.social
상일
@sioum.bsky.social
수학자 그래프이론 전공 기초과학연구원 이산수학그룹
Simón Piga gave a talk on variants of the Turán problem for k-uniform hypergraphs at the Discrete Math Seminar

On November 11, 2025, Simón Piga from the University of Hamburg gave a talk at the Discrete Math Seminar on variants of the Turán problem for…

https://dimag.ibs.re.kr/2025/simon-piga/
November 12, 2025 at 1:08 AM
Tim Hartmann and Ahmed Ghazy gave a talk on continuous graphs—a model obtained by replacing each edge of a graph with a unit interval to form a metric space, enabling continuous analogues of classical graph problems at the Discrete Math Seminar

On…

https://dimag.ibs.re.kr/2025/continuous-graph/
November 5, 2025 at 1:20 PM
Jakob Greilhuber gave a talk on the problem of deleting a small set of vertices to make every component small at the Discrete Math Seminar

On October 28, 2025, Jakob Greilhuber from the CISPA Helmholtz Center for Information Security gave a…

https://dimag.ibs.re.kr/2025/jakob-greilhuber-seminar/
October 28, 2025 at 12:40 PM
William Cook gave a public lecture in Seoul on the Traveling Salesman Problem

On October 22, 2025, William Cook from the University of Waterloo gave a public lecture on the traveling salesman problem at the ST Center, Seoul during the 2025…

https://dimag.ibs.re.kr/2025/william-cook-public-lecture/
October 23, 2025 at 4:28 AM
William Cook gave a talk on using branch-decompositions for discrete optimization problems, such as the traveling salesman problem, at the Discrete Math Seminar

On October 21, 2025, William Cook gave a talk at the Discrete Math Seminar on using…

https://dimag.ibs.re.kr/2025/william-cook-2/
October 21, 2025 at 12:29 PM
다음주 수요일(10월 22일) 대한수학회 행사의 일부로 강남역 근처에서 열리는 무료 대중강연. 저녁 7시인데 조금 일찍 오시면 저녁 하시도록 피자도 주문해놨다는 것은 안 비밀... 포스터에 QR코드 찍으면 무료 사전 등록 가능.
October 18, 2025 at 1:25 AM
Ilkyoo Choi (최일규) gave a talk on the average degree of list-color-critical graphs and DP-color-critical graphs at the Discrete Math Seminar

On October 14, 2025, Ilkyoo Choi (최일규) from Hankuk University of Foreign Studies and IBS Discrete Mathematics…

https://dimag.ibs.re.kr/2025/dp-color-critical/
October 17, 2025 at 3:00 AM
Welcome Jigang Choi (최지강), a new graduate student of the IBS Discrete Mathematics Group

The IBS Discrete Mathematics Group welcomes Jigang Choi (최지강), a new graduate student of the Discrete Mathematics Group from October 1, 2025. He received his…

https://dimag.ibs.re.kr/2025/welcome-jigang-choi/
September 30, 2025 at 11:01 PM
Marcelo Sales gave a talk on proving lower bounds on the Ramsey numbers of some hypergraphs

On September 30, 2025, Marcelo Sales from the University of California, Irvine, gave a talk at the Discrete Math Seminar about proving lower bounds on…

https://dimag.ibs.re.kr/2025/marcelo-sales-seminar/
September 30, 2025 at 1:38 PM
Upcoming Public Lecture: The Traveling Salesman Problem — Package Deliveries, Pub Walks, and Astro Tours on October 22, 2025 in Seoul near Gangnam Station

We are pleased to share an exciting public lecture as part of the 2025 Annual Meeting of the Korean…

https://dimag.ibs.re.kr/2025/tsp/
September 26, 2025 at 9:42 AM
Maximilian Gorsky from the IBS Discrete Mathematics Group gave an invited talk at KPPY100 held at Gyeongju, Korea.
September 22, 2025 at 2:21 PM
Rong Luo gave a survey talk on the nowhere-zero flows on signed graphs at the Discrete Math Seminar

On September 22, 2025, Rong Luo from West Virginia University gave a talk at the Discrete Math Seminar on nowhere-zero flows on signed graphs. His…

https://dimag.ibs.re.kr/2025/rong-luo-seminar/
September 22, 2025 at 2:10 PM
Mujin Choi (최무진) gave a talk on unavoidable induced minors in graphs of large tree-independence number without a fixed star induced subgraph

On September 16, 2025, Mujin Choi (최무진) from KAIST and the IBS Discrete Mathematics Group gave a…

https://dimag.ibs.re.kr/2025/mujin-choi-tree-independence/
September 16, 2025 at 2:34 PM
Katherine Perry gave a talk on the distinguishing number and the fixing number of trees at the Discrete Math Seminar

On September 9, 2025, Katherine Perry from the Soka University of America gave a talk at the Discrete Math Seminar on the…

https://dimag.ibs.re.kr/2025/katherine-perry-seminar/
September 9, 2025 at 2:28 PM
We are hiring! The IBS Discrete Mathematics Group (DIMAG) Research Fellowship (Due: December 3, 2025)

The IBS Discrete Mathematics Group (DIMAG) in Daejeon, Korea invites applications for four research fellowship positions (senior researcher positions).…

https://dimag.ibs.re.kr/2025/hiring2025/
September 3, 2025 at 4:43 AM
Zhifei Yan gave a talk on covering the vertex set of a properly edge-colored graph with two vertex-disjoint rainbow cycles at the Discrete Math Seminar

On September 2, 2025, Zhifei Yan from the IBS Extremal Combinatorics and Probability Group gave a…

https://dimag.ibs.re.kr/2025/zhifei-yan-lehel/
September 2, 2025 at 1:29 PM
Welcome Zhifei Yan, a new member of IBS Extremal Combinatorics and Probability Group

The IBS discrete mathematics group welcomes Dr. Zhifei Yan, a new research fellow at the IBS Extremal Combinatorics and Probability Group, starting September 1,…

https://dimag.ibs.re.kr/2025/welcome-zhifei-yan/
September 1, 2025 at 4:28 AM
Sang-il Oum (엄상일) gave a talk on the Erdős-Pósa property for vertex-minors at the Discrete Math Seminar

On August 29, 2025, Sang-il Oum (엄상일) from the IBS Discrete Mathematics Group gave a talk at the Discrete Math Seminar on the Erdős-Pósa property for…

https://dimag.ibs.re.kr/2025/vertex-minor/
August 29, 2025 at 11:26 AM
1st day of the KIAS-KAIST Workshop on Current Challenges in Mathematics
June E Huh
Michel Talagrand
Jinyoung Park
August 25, 2025 at 6:55 AM
2025 Korean Student Combinatorics Workshop was held in Gyeongju from August 20 to August 24

The 2025 Korean Student Combinatorics Workshop (KSCW2024, 2024 조합론 학생 워크샵) was held…

https://dimag.ibs.re.kr/2025/2025-korean-student-combinatorics-workshop-was-held-in-gyeongju-from-august-20-to-august-24/
August 25, 2025 at 5:10 AM
2025 Combinatorics Workshop was held at IBS on August 18-20

The 2025 Combinatorics Workshop (2025 조합론 학술대회) was held from August 18, 2025 to August 20, 2025 at IBS, Daejeon. Combinatorics Workshop (조합론 학술대회) is an annual conference for researchers…

https://dimag.ibs.re.kr/2025/2025-combinatorics/
August 20, 2025 at 7:51 AM
Chien-Chung Huang gave a talk at the Discrete Math Seminar on finding a small substructure in a matroid that allows a good approximation for the matroid intersection

On August 12, 2025, Chien-Chung Huang from CNRS, DI ENS gave a talk at the…

https://dimag.ibs.re.kr/2025/chien-chung-huang-seminar/
August 12, 2025 at 12:41 PM
2025 Summer School by IBS ECOPRO was held from July 28 to August 8 with lectures by Lior Gishboliner and Yuval Filmus

The 2025 Summer School "Frontiers of Combinatorics" was held at IBS from July 28, 2025 to August 8, 2025. Lior Gishboliner…

https://dimag.ibs.re.kr/2025/2025-summer-school-ecopro/
August 11, 2025 at 12:16 AM
Tony Huynh gave a talk on a natural extension of the multicolored version of the Erdős-Hajnal conjecture to projective geometries at the Discrete Math Seminar

On August 5, 2025, Tony Huynh from the IBS Discrete Mathematics Group gave a…

https://dimag.ibs.re.kr/2025/tony-huynh-rainbow-triangle/
August 5, 2025 at 11:09 AM
Colin Geniet gave a talk on the merge-width of graphs and 𝜒-boundedness of graphs of bounded merge-width at the Discrete Math Seminar

On July 29, 2025, Colin Geniet from the IBS Discrete Mathematics Group gave a talk on the merge-width of…

https://dimag.ibs.re.kr/2025/colin-geniet-merge-width/
July 29, 2025 at 1:01 PM