The followings is a list of visiting researches.

• 2025 Jul. 1-29, INRIA, Université de Nancy, Nancy, France. Working on Helly type problem, hosted by Niloufar Fuladi.

The following is a list of conferences / workshops / summer (winter) schools I have participated in.

2025

• Aug. 20-24, Korea Student Combinatorics Workshop (KSCW), Gyeongju, Korea

• Aug. 18-20, Combinatorics Workshop, IBS, Daejeon, Korea

• Aug. 11-13, Workshop for Young Mathematician in Korea (WYMK), Kyungpook University, Daegu, Korea

• May. 27-31, Topological Methods in Combinatorics summer school, Iowa State University, Iowa, US

• Apr. 24-26, KMS spring meeting, KAIST, Daejeon, Korea

2024

• Dec. 19-21, 32th KIAS Combinatorics Workshop, Busan, Korea

• Nov. 11, IBS-DIMAG Workshop on Topology and Combinatorics, IBS, Daejeon, Korea

• Oct. 24-26, KMS fall meeting, Sungkyunkwan University, Suwon, Korea

• Oct. 5, 99th KPPY Combinatorics Seminar, Yeungnam University, Kyeongsan, Korea

• Aug. 28-30, Combinatorics Workshop, Chungbuk National University, Chungju, Korea

• Aug. 19-23, Workshop on (mostly) Matroid, IBS, Daejeon, Korea

• Aug. 12-14, Workshop for Young Mathematician in Korea (WYMK), Seoul National University, Seoul, Korea

• Jul. 29 - Aug. 2, Korea Student Combinatorics Workshop (KSCW), Gongju, Korea

• Jul. 22-26, Summer School on Combinatorics and Algorithms, KAIST, Daejeon, Korea

• Jul. 15-19, IBS-DIMAG Workshop on Combinatorics and Geometric Measure Theory, IBS, Daejeon, Korea

• Jun. 11-14, 40th international Symposium on Computational Geometry (SOCG), Eugenides Foundation, Athens, Greece

• Apr. 18-20, KMS spring meeting, Daejeon Convention Center & KAIST, Daejeon, Korea

• Mar. 8-9, 29th KIAS Combinatorics Workshop, KIAS, Seoul, Korea

2023

• Dec. 26-28, KIAS Combinatorics Workshop, Busan, Korea