Sharp Asymptotics for Kpp Pulsating Front Speed-up and Diffusion Enhancement by Flows
نویسنده
چکیده
We study KPP pulsating front speed-up and effective diffusivity enhancement by general periodic incompressible flows. We prove the existence of and determine the limits c∗(A)/A and D(A)/A as A → ∞, where c∗(A) is the minimal front speed and D(A) the effective diffusivity.
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