Temporal and dimensional effects in evolutionary graph theory
C. J. Paley, S. N. Taraskin, S. R. Elliott
Abstract
The spread in time of a mutation through a population is studied analytically and computationally in fully-connected networks and on spatial lattices. The time, t*, for a favourable mutation to dominate scales with population size N as N(D+1)/D in D-dimensional hypercubic lattices and as N ln N in fully-connected graphs. It is shown that the surface of the interface between mutants and non-mutants is crucial in predicting the dynamics of the system. Network topology has a significant effect on the equilibrium fitness of a simple population model incorporating multiple mutations and sexual reproduction. Includes supplementary information.
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