The 23rd Thailand-Japan Conference on Discrete and Computational Geometry, Graphs, and Games (TJCDCG3 2020+1)

September 3-5, 2021
at Department of Mathematics
Faculty of Science, Chiang Mai University, Thailand



The registration system will be opened until August 30, 2021 (AoE).

Updated August 20, 2021. The payment with credit card is opened. Please follow the instruction from the page Fee & Payments (Link : )

Conference Schedule : Version September 3, 2021 (pdf file)

Book of Abstract : Version September 1, 2021 (pdf file)

เอกสารการขออนุมัติจัดโครงการ TJCDCGGG2020+1 

    • จดหมายสำหรับการใช้เบิกค่าลงทะเบียนและค่าใช้จ่ายต่าง ๆ ของผู้เข้าร่วม (ฉบับภาษาไทย) (.pdf file)
    • โปสเตอร์ประชาสัมพันธ์ (.jpg file)


Conference Overview

       The series of the Japan Conference on Discrete and Computational Geometry, Graphs, and Games (JCDCG3) has been held annually since 1997. In 2012, the series of the conference was held at Srinakarinwirot University in Bangkok as “Thailand-Japan Joint Conference on Computational Geometry and Graphs (TJJCCGG 2012)”. Due to the COVID-19 pandemic situation, the event planned in Chiang Mai in 2020 was postponed. It is time to continue the conference by 100% online format this year, organized by Chiang Mai University, Thailand.

       The topic of the conference includes but not limited to: Discrete Geometry, Computational Geometry, Graph Theory, Graph Algorithms, Complexity, and Winning Strategies of Games and Puzzles

Invited Speakers


Kokichi Sugihara
Meiji University Distinguished Professor Emeritus
Tokyo, Japan

János Pach

Rényi Institute of Mathematics
Budapest, Hungary

Erik Demaine

Massachusetts Institute of Technology

Stefan Langerman
Algorithms Research Group,
Université Libre de Bruxelles, Belgium

Jittat Fakcharoenphol

Theory Research Group, CPE
Kasetsart University, Thailand

Daniel Horsley
Monash University