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arXiv 2604.04776math.AP
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关于具有双重相退化律的全非线性椭圆方程在边界处的最优 $C^{1,α}$ 正则性

Optimal $C^{1,α}$ regularity up to the boundary for fully nonlinear elliptic equations with double phase degeneracy

Junior da Silva Bessa, Jehan Oh

AI总结:

本文研究了具有双重相退化律和斜边界条件的全非线性椭圆方程粘性解的最优 $C^{1,α}$ 正则性,通过建立几乎 $C^{1}$-平滑域中扰动模型的均匀边界霍尔德估计,结合粘性解的紧性和稳定性框架,得到正则性结果,并确定了当主算子拟凸或拟凹时的最优霍尔德指数。

摘要:

在本文中,我们建立了具有双重相退化律和斜边界条件的全非线性椭圆方程粘性解在边界处的最优 $C^{1,α}$ 正则性。所采用的方法首先是在几乎 $C^{1}$-平滑域中推导出具有斜边界数据的扰动模型的均匀边界霍尔德估计。在此基础上,通过粘性解的紧性和稳定性框架,获得所需的正则性。作为分析的副产品,我们确定了当主算子为拟凸或拟凹时解的最优霍尔德指数。此外,我们还建立了沿源项消失点的改进正则性结果。

英文摘要:

In this paper we establish optimal $C^{1,α}$ regularity up to the boundary for viscosity solutions of fully nonlinear elliptic equations with double phase degeneracy law and oblique boundary conditions. The approach developed here relies on first deriving uniform boundary Hölder estimates for perturbed models with oblique boundary data in ``almost $C^{1}$-flat'' domains. Building upon these estimates, the desired regularity is obtained through a compactness and stability framework for viscosity solutions. As a byproduct of our analysis, we determine the optimal Hölder exponent for solutions when the governing operator is quasiconvex or quasiconcave. In addition, we establish an improved regularity result along vanishing points of the source term.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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