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Well-Posedness and Asymptotics of a Coordinate-Free Model of Flame Fronts\ast
Journal article   Open access   Peer reviewed

Well-Posedness and Asymptotics of a Coordinate-Free Model of Flame Fronts\ast

David M. Ambrose, Fazel Hadadifard and J. Douglas Wright
SIAM journal on applied dynamical systems, v 20(4), pp 2261-2294
01 Jan 2021
url
http://arxiv.org/abs/2010.00737View

Abstract

Mathematics, Applied Physics, Mathematical Science & Technology Mathematics Physical Sciences Physics
We investigate a coordinate-free model of flame fronts introduced by Frankel and Sivashinsky; this model has a parameter \alpha which relates to how unstable the front might be. We first prove shorttime well-posedness of the coordinate-free model for any value of \alpha > 0. We then argue that near the threshold \alpha \approx 1, the solution stays arbitrarily close to the solution of the weakly nonlinear Kuramoto-Sivashinsky equation, as long as the initial values are close.

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Mathematics, Applied
Physics, Mathematical
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