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headshot of Matthew G. Brin

Matthew G. Brin

Bartle Professor

Mathematical Sciences


I am currently interested in the mathematical interactions of a collection of groups that arose first in logic and universal algebra. The groups are generalizations of three groups first discovered by Richard Thompson. The groups show up in a strong way in logic, homotopy and shape theory, dynamical systems, categorical algebra and its relation to physics, and the combinatorial group theory of the word problem and of infinite simple groups. They are a source of examples or potential examples in geometric group theory, cohomology of groups, string rewriting systems and abstract measure theory.


  • BS, City College of New York
  • MS, PhD, University of Wisconsin at Madison

Research Interests

  • Geometric topology
  • combinatorial group theory