Asymptotic spreading of KPP reactive fronts in incompressible space-time random flows
Traveling waves in a one-dimensional heterogeneous medium
The logarithmic delay of KPP fronts in a periodic medium
We extend, to parabolic equations of the KPP type in periodic media, a result of Bramson which asserts that, in the case of a spatially homogeneous reaction rate, the time lag between the position of an initially compactly supported solution and that of a traveling wave grows logarithmically in time.
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