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arXiv 1608.01893math.AP
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粘性和非粘性HJ方程的均匀化:一个注记及其应用

Homogenization of viscous and non-viscous HJ equations: a remark and an application

Andrea Davini, Elena Kosygina

摘要:

这是在[P. L。Lions,G. Papanicolaou,S. Varadhan,Homogenization of Hamilton-Jacobi equation,unpublished preprint(1987)]指出,对于一阶Hamilton-Jacobi(HJ)方程,从仿射初始数据开始的均匀化意味着对于一般一致连续的初始数据的均匀化。这个论证利用了HJ半群的一些性质,特别是传播的有限速度。对于粘性HJ方程,最后一个性质消失了。本文在粘性和非粘性两种情况下证明了上述蕴涵。我们的证明依赖于埃文斯的扰动检验函数方法的一个变种。作为应用,我们在平稳遍历设置的粘性和非粘性HJ方程在一个空间维的非凸哈密顿的特定形式。结果是新的粘性情况下。

英文摘要:

It was pointed out in [P.L. Lions, G. Papanicolaou, S. Varadhan, Homogenization of Hamilton-Jacobi equation, unpublished preprint (1987)] that, for first order Hamilton-Jacobi (HJ) equations, homogenization starting with affine initial data implies homogenization for general uniformly continuous initial data. The argument makes use of some properties of the HJ semi-group, in particular, the finite speed of propagation. The last property is lost for viscous HJ equations. In this paper we prove the above mentioned implication in both viscous and non-viscous cases. Our proof relies on a variant of Evans's perturbed test function method. As an application, we show homogenization in the stationary ergodic setting for viscous and non-viscous HJ equations in one space dimension with non-convex Hamiltonians of specific form. The results are new in the viscous case.

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