Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10527303 | Stochastic Processes and their Applications | 2016 | 22 Pages |
Abstract
We study evolutionary games on the torus with N points in dimensions dâ¥3. The matrices have the form GÌ=1+wG, where 1 is a matrix that consists of all 1's, and w is small. As in Cox Durrett and Perkins (2011) we rescale time and space and take a limit as Nââ and wâ0. If (i) wâ«Nâ2/d then the limit is a PDE on Rd. If (ii) Nâ2/dâ«wâ«Nâ1, then the limit is an ODE. If (iii) wâªNâ1 then the effect of selection vanishes in the limit. In regime (ii) if we introduce mutations at rate μ so that μ/wââ slowly enough then we arrive at Tarnita's formula that describes how the equilibrium frequencies are shifted due to selection.
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Physical Sciences and Engineering
Mathematics
Mathematics (General)
Authors
J. Theodore Cox, Rick Durrett,