Recorded 26 February 2026. Arne Traulsen of the MPI for Evolutionary Biology presents "Evolutionary dynamics in Small Network Structured Populations" at IPAM's Mathematics of Cancer: Open Mathematical Problems Workshop. Abstract: Mathematical models often work in unstructured populations, but real populations from tissues to higher organisms usually have to be treated as spatially structured. How do we model this “space”? Network structured populations provide a playground to consider different ways to implement evolutionary dynamics in space – and they teach us that often presumably tiny details matter and can drive the outcome on a macroscopic level. Learn more online at: https://www.ipam.ucla.edu/programs/workshops/mathematics-of-cancer-open-mathematical-problems/