A homogeneity improvement approach to the obstacle problem

A homogeneity improvement approach to the obstacle problem
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障碍问题的同质性改进方法

DOI:
10.1007/s002220050340
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发表时间:
1999
影响因子:
3.1
通讯作者:
G. Weiss
G. Weiss
中科院分区:
数学1区
文献类型:
--
作者:
G. Weiss

文献摘要

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摘要。本文提出了一种新的方法来研究障碍物问题的正则性和奇异性:利用一个经验不等式和单调性公式,导出了一个能量衰减估计。因此,可以估计当传递到一个较小的球时溶液的均匀性的增加。这导致了爆炸极限的唯一性和这个顺序的规律性。
Abstract.This paper contains a new approach to regularity and singularity of the obstacle problem: by means of an epiperimetric inequality and a monotonicity formula an energy decay estimate is derived. As a consequence, the increase in the solution’s homogeneity when passing to a smaller ball can be estimated. This leads to uniqueness of blow-up limits and regularity in that order.