Comparison principles for second-order elliptic/parabolic equations with discontinuities in the gradient compatible with Finsler norms

Comparison principles for second-order elliptic/parabolic equations with discontinuities in the gradient compatible with Finsler norms
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梯度不连续且与芬斯勒范数兼容的二阶椭圆/抛物线方程的比较原理

DOI:
10.1016/j.jfa.2023.109983
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发表时间:
2023
影响因子:
1.7
通讯作者:
Souganidis, Panagiotis E.
Souganidis, Panagiotis E.
中科院分区:
数学1区
文献类型:
--
作者:
Morfe, Peter S.;Souganidis, Panagiotis E.

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本文研究了梯度不连续的椭圆型和抛物型偏微分算子,它们在某种意义上与Finsler范数相容。这类问题的例子出现在许多背景下,最值得注意的是Chatterjee和第二作者[7]最近关于离散表面生长模型的标度极限以及L∞−变分问题的工作。基于石井[16]的方法,在一个统一的框架内证明了新的比较结果,该框架包括许多以前的结果作为特例。
This paper is about elliptic and parabolic partial differential operators with discontinuities in the gradient which are compatible with a Finsler norm in a sense to be made precise. Examples of this type of problems arise in a number of contexts, most notably the recent work of Chatterjee and the second author [7] on scaling limits of discrete surface growth models as well as L∞− variational problems. Building on the approach of Ishii [16], new comparison results are proven within a unified framework that includes a number of previous results as special cases.
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