Mari Kawakatsu Photo: Michigan Photography

Mari Kawakatsu

LSA Collegiate Fellow &
Incoming Assistant Professor of Mathematics & Complex Systems

University of Michigan

I am an applied mathematician and a theoretical biologist at the University of Michigan, where I am an LSA Collegiate Fellow (2026–) and an incoming Assistant Professor (2027–) in the Department of Mathematics and the Center for the Study of Complex Systems.

I use mathematics and computation to study social processes, in both biological collectives and human societies. My work brings together methods from applied mathematics — including game theory, dynamical systems, and stochastic processes — with theory and concepts from evolutionary biology and social science. Recent research interests include:

  1. cooperation and reciprocity mediated by reputation, communication, and social norms;
  2. prosocial decision making in dynamic environments; and
  3. the emergence of social structures and their effects on collective behavior.

My group is recruiting motivated students and postdocs interested in mathematical modeling of social dynamics. More information is available here.


Upcoming Activities

November 2026: Midwest Mathematical Biology Seminar, online

January 2027: Joint Mathematics Meetings (JMM 2027), Chicago, IL

February 2027: Interdisciplinary Committee on Organizational Studies, University of Michigan

February 2027: Applied and Interdisciplinary Mathematics (AIM) seminar, University of Michigan

May 2027: SIAM Conference on Applications of Dynamical Systems (DS27), Atlanta, GA


Recent Activities & News

October 2026: I attended the Conference on Complex Systems (CCS2026) in Binghamton, NY. I gave a talk on our recent preprint and served as the onsite coordinator for the Womplexity Meets Northeast: Connecting Communities in Complex Systems Science satellite.

August 2026: I have moved to the University of Michigan!

June 2026: New preprint! “A model of local and global reciprocity” (with Yohsuke Murase, Taylor Kessinger, and Joshua Plotkin) is out on arXiv.

May 2026: I attended the third Beijer Young Scholars workshop in Stockholm.

May 2026: New preprint! “Bridging social–ecological systems and ecological economics to navigate polycrisis” led by Louis Delannoy is out on EarthArXiv.

January 2026: I attended ICMMA 2025 Cooperative Strategies and Dynamics in Social Systems: from Human to Insect Societies at Meiji University in Tokyo.

December 2025: I gave a talk at the CCSS Workshop on Computational Social Science: Methods and Applications at Kobe University in Kobe.

September 2025: I attended the Postdocs in Complexity Conference at the Santa Fe Institute.