Seminar series
Date
Tue, 17 Feb 2026
Time
14:00 -
15:00
Location
C3
Speaker
George Cantwell
Organisation
University of Cambridge
Graphs are an attractive formalism because, despite over-simplification, they seem capable of representing the rich structure we see in complex dynamical systems.
Mean-field style approximations can be highly effective at describing equilibrium systems. In this talk, we will begin by reviewing such methods and showing how to make systematic corrections to them via spatial expansions. Adapting the methods for dynamic systems is an ongoing project. Through two simple case studies -- the random walk and the SIS model -- we make a start on this. In both case studies non-trivial predictions are made.