Former Members - Discrete Mathematics Group

Research Fellows

Methuku, Abhishek

Research Fellow (2019.8.1-2020.1.15)

Ph.D. in Mathematics, Central European Univ. (2019).
Advisor: Gyula O. H. Katona and Ervin Győri.
Currently, an assistant professor at UIUC.

Tompkins, Casey

Research Fellow (2019.9.1-2021.11.30)

Ph.D. in Mathematics, Central European Univ. (2015).
Ph.D. Advisor: Gyula O. H. Katona
Currently, a post-doctoral researcher at the Rényi Institute, Budapest, Hungary.

Kim, Minki (김민기)

Research Fellow (2020.9.1-2022.1.31)

Ph.D. in Mathematical Sciences, KAIST. (2018).
Ph.D. Advisor: Andreas Holmsen
Currently, an associate professor at GIST (Gwangju Institute of Science and Technology), Gwangju, Korea.

Tran, Tuan (Trần Mạnh Tuấn)

Young Scientist Fellow (2020.8.1-2022.6.28)

Ph.D. in Mathematics, Freie Universität Berlin (2015).
Ph.D. Advisor: Tibor Szabó
Currently, an associate professor at the University of Science and Technology of China (USTC), Hefei, Anhui, China.

Lee, Dabeen (이다빈)

Young Scientist Fellow (2021.1.1-2022.6.30)
Research Fellow (2019.6.16-2020.12.31)

Ph.D. in Algorithms, Combinatorics, and Optimization, Carnegie Mellon Univ. (2019).
Ph.D. Advisor: Gerards Cornuejols
Currently, an assistant professor at Department of Mathematical Sciences, Seoul National University, Seoul, Korea.

Kim, Jinha (김진하)

Visiting Research Fellow (2023.11.16-)
Young Scientist Fellow (2023.3.1-2023.8.25)
Research Fellow (2020.9.1-2023.2.28)

Ph.D. in Mathematics, Seoul National University (2019).
Ph.D. Advisor: Woong Kook (국웅)
Currently, an assistant professor at Dept. of Mathematics, Chonnam National University, Gwangju, Korea.

Chakraborti, Debsoumya (দেবসৌম্য চক্রবর্তী)

Research Fellow (2020.8.16-2023.8.31)

Ph.D. in Algorithms, Combinatorics, and Optimization, Carnegie Mellon Univ. (2020).
Ph.D. Advisor: Po-Shen Loh
Currently, a research fellow at the University College London, UK.

Cook, Linda

Research Fellow (2021.8.1-2024.7.31)

Ph.D. in Applied and Computational Mathematics, Princeton Univ. (2021).
Ph.D. Advisor: Paul Seymour
Currently, an assistant professor at Department of Mathematics, University of Utrecht.

Gollin, J. Pascal

Young Scientist Fellow (2021.8.1-2024.7.31)
Research Fellow (2019.10.1-2021.7.31)

Ph.D. in Mathematics, Universität Hamburg. (2019).
Ph.D. Advisor: Reinhard Diestel
Currently, a postdoctoral researcher at the University of Primorska, Slovenia.

Hendrey, Kevin

Research Fellow (2019.8.16-2024.8.15)

Ph.D. in Mathematics, Monash Univ. (2019).
Ph.D. Advisor: David R. Wood
Currently, a postdoctoral researcher at Monash University, Australia.

Clifton, Alexander

Research Fellow (2022.8.16-2024.8.31)

Ph.D. in Mathematics, Emory Univ. (2022).
Ph.D. Advisor: Hao Huang
Currently, a postdoctoral researcher at Czech Technical University, Prague, Czech.

Wiederrecht, Sebastian

Research Fellow (2022.7.16-2024.9.30)

Ph.D. from Technische Universität Berlin (2021).
Ph.D. Advisor: Stephan Kreutzer
Currently, an assistant professor at the School of Computing, KAIST, Daejeon, Korea.

Lund, Ben

Research Fellow (2020.8.1-2025.7.31)

Ph.D. in Mathematics, Rutgers Univ. (2017).
Ph.D. Advisor: Shubhangi Saraf
Currently, a specially appointed professor at the School of Mathematics and Statistics, Xidian University, Xi’an, China.

Campbell, Rutger

Research Fellow (2020.8.16-2025.8.15)

Ph.D. in Combinatorics and Optimization, Univ. of Waterloo (2020).
Ph.D. Advisor: Jim Geelen
Currently, a postdoctoral researcher at KAIST, Daejeon, Korea.

Lee, Seunghun (이승훈)

Research Fellow (2025.7.1-2025.8.22)

Ph.D. in Mathematical Sciences, KAIST (2020).
Ph.D. Advisor: Andreas Holmsen
Currently, an assistant professor at Keimyung University, Daegu, Korea.

Hatzel, Meike

Research Fellow (2024.8.1-2025.9.30)

Ph.D. from Technische Universität Berlin (2022).
Ph.D. Advisor: Stephan Kreutzer
Office: B317
Currently, an assistant professor at TU Darmstadt, Germany.

Visiting Research Fellows

Choi, Jeong Ok (최정옥)

Visiting Research Fellow (2020.9.1-2021.8.31)

Associate Professor at GIST (Gwangju Institute of Science and Technology).
Ph.D. in Mathematics, the University of Illinois at Urbana-Champaign (2008).

Shin, Heesung (신희성)

Visiting Research Fellow (2020.9.1-2021.8.31)

Professor at Dept. of Mathematics, Inha University.
Ph.D. in Mathematical Sciences, KAIST (2007).

Yang, Hongseok (양홍석)

Visiting Research Fellow (2022.2.28-2023.2.24)

Professor at School of Computing, KAIST.
Ph.D. in Computer Science, UIUC (2001).

Visiting Researchers

Kim, Ringi (김린기)

Visiting Researcher

Previously, a Research Assistant Professor at Dept. of Mathematical Sciences, KAIST.
Currently, an Associate Professor at Dept. of Mathematics, Inha University.
Advisor: Paul Seymour

Zhang, Xin (张欣)

Visiting Scholar (2019.8.1-2020.7.31)

Associate Professor of Xidian University, China.

Xu, Chuandong (徐川东)

Visiting Researcher (2023.6.21-2024.6.20)

Lecturer at Xidian University, Xian, China.
Ph.D. in Applied Mathematics, Northwestern Polytechnical University, China (2016).

Students

Previously, a graduate student at Dept. of Mathematical Sciences, KAIST, 2014.3-2020.2.
Currently, a Young Scientist Fellow at the IBS Extremal Combinatorics and Probability Group, Korea from June 2023.
Email: dykang.math@ (ibs.re.kr).

Lee, Duksang (이덕상)

Graduate Student ( – 2022.12)

Previously, a graduate student at Dept. of Mathematical Sciences, KAIST since March 2018.
Currently at the Institute of Advanced Technology Development of Hyundai Motor Group.

Ahn, Jungho (안정호)

Graduate Student ( – 2023.8)

Previously, a graduate student at Dept. of Mathematical Sciences, KAIST since March 2018.
Currently, an assistant professor at the Department of Computer Engineering, Inha University, Incheon, Korea.

Kim, Donggyu (김동규)

Graduate Student (2019.7-2025.2)

Previously, a graduate student at Dept. of Mathematical Sciences, KAIST since March 2019.
Currently, a visiting assistant professor at the Georgia Institute of Technology.

Wee, Sounggun (위성군)

Graduate Student (2020.1-2023.2)

Previously, a graduate student at Dept. of Mathematical Sciences, KAIST since Sep. 2019.

Overman, William

Visiting Student (2019.6 – 2019.8, 2021.3-2021.8)

Previously, an undergraduate student at California
Institute of Technology, -2020.6.
Currently, a graduate student at Stanford University.

Kook, Yunbum (국윤범)

Visiting Student (2020.7-2021.6)

Previously, an undergraduate student at Dept. of Mathematical Sciences, KAIST since March 2015.
Currently, a graduate student at the Georgia Institute of Technology.

Reinald, Amadeus

Visiting Graduate Student (2022.5.18-2022.8.26)

Previously, a graduate student at the ENS de Lyon, France.
Currently, a postdoc at the University of Warsaw.

Do, Tuan Anh (Tuấn Anh Đỗ)

Visiting Graduate Student (2022.3.1-2022.8.31)

Previously, a graduate student at the Technical University of Graz, Austria.
Currently, a postdoc at the Beijing Institute of Technology, China.
Email: dotuananh @ (hpu2.edu.vn)