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- W4300908478 abstract "In this paper, we study gradient decay estimates for solutions to the multi-dimensional Fisher-KPP equation with fractional diffusion. It is known that this equation exhibits exponentially advancing level sets with strong qualitative upper and lower bounds on the solution. However, little has been shown concerning the gradient of the solution. We prove that, under mild conditions on the initial data, the first and second derivatives of the solution obey a comparative exponential decay in time. We then use this estimate to prove a symmetrization result, which shows that the reaction front flattens and quantifiably circularizes, losing its initial structure." @default.
- W4300908478 created "2022-10-04" @default.
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- W4300908478 date "2017-10-01" @default.
- W4300908478 modified "2023-09-23" @default.
- W4300908478 title "Gradient estimates and symmetrization for Fisher–KPP front propagation with fractional diffusion" @default.
- W4300908478 hasPublicationYear "2017" @default.
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