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arXiv 2207.04787math.PRmath.AP
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拟线性粗糙发展方程

Quasilinear rough evolution equations

Antoine Hocquet, Alexandra Neamţu

摘要:

本文研究了巴拿赫空间中拟线性抛物型方程的抽象Cauchy问题,其形式为\( du_t -L_t(u_t)u_t dt = N_t(u_t)dt + F(u_t)\cdot d\mathbf X_t \),其中\( \mathbf X\)是\( γ\in(1/3,1/2)\)的\( γ\)-Hölder粗路.我们探讨温和的配方,结合泛函分析技术和控制粗糙路径理论,需要这样的方程的局部适定性。我们应用我们的结果随机Landau-Lifshitz-Gilbert和Shigesada-Kawasaki-Teramoto方程。在这个框架下,我们得到了一个随机动力系统的Landau-Lifshitz-Gilbert方程。

英文摘要:

We investigate the abstract Cauchy problem for a quasilinear parabolic equation in a Banach space of the form \( du_t -L_t(u_t)u_t dt = N_t(u_t)dt + F(u_t)\cdot d\mathbf X_t \), where \( \mathbf X\) is a \( γ\)-Hölder rough path for \( γ\in(1/3,1/2)\). We explore the mild formulation that combines functional analysis techniques and controlled rough paths theory which entail the local well-posedness of such equations. We apply our results to the stochastic Landau-Lifshitz-Gilbert and Shigesada-Kawasaki-Teramoto equation. In this framework we obtain a random dynamical system associated to the Landau-Lifshitz-Gilbert equation.

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