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北美退伍军人节(Veterans Day),12 日无更新
arXiv 2007.07349math.AP
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变系数薄障碍问题的几乎极小解

Almost minimizers for the thin obstacle problem with variable coefficients

Seongmin Jeon, Arshak Petrosyan, Mariana Smit Vega Garcia

摘要:

研究了具有变Hölder连续系数和零薄障碍的薄障碍问题的几乎极小元,建立了它们在薄空间两侧的$C^{1,β}$正则性.在拟对称性的假设下,我们建立了几乎极小元的最优增长性、正则集的正则性和奇异集的一个结构定理。的证据是基于推广的Weiss和Almanti型单调性公式几乎最小的情况下建立的常系数。

英文摘要:

We study almost minimizers for the thin obstacle problem with variable Hölder continuous coefficients and zero thin obstacle and establish their $C^{1,β}$ regularity on the either side of the thin space. Under an additional assumption of quasisymmetry, we establish the optimal growth of almost minimizers as well as the regularity of the regular set and a structural theorem on the singular set. The proofs are based on the generalization of Weiss- and Almgren-type monotonicity formulas for almost minimizers established earlier in the case of constant coefficients.

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