Competition at the front of expanding populations

Summary

I.      Neutral range expansion: Roughness of front of neutral bacteria invading new territory

II.     Competitive expansion: Morphologies and growth patterns, invasion speeds

III.   Exact results from a generalized Cole-Hopf map

IV.   Fixation of emerging specialists: bounded vs. unbounded fitness

V.    Fitness variations: universality classes

Florence                    StatPhys29                    July16, 2025

       Daniel Swartz,       Sherry Chu,                Lauren Li,           Sergio Eraso      

    Kirill Korolev,     Hyunseok Lee,     Jordan Horowitz,          Daniel Beller,   David Nelson     

Next (summary) Outline Range Expansions Morphology Deterministic growth Specialization Fitness variations Summary