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Pointwise regularity for locally uniformly elliptic equations and applications

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arxiv 2405.07199 v1 pith:U5ZEL7QV submitted 2024-05-12 math.AP

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keywords equationsremarkregularityellipticequationpointwisealphaapplications
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abstract

In this paper, we study the regularity for viscosity solutions of locally uniformly elliptic equations and obtain a series of interior pointwise $C^{k,\alpha}$ ($k\geq 1$, $0<\alpha<1$) regularity with smallness assumptions on the solution and the right-hand term. As applications, we obtain various interior pointwise regularity for several classical elliptic equations, i.e., the prescribed mean curvature equation, the Monge-Amp\`{e}re equation, the $k$-Hessian equations, the $k$-Hessian quotient equations and the Lagrangian mean curvature equation. Moreover, the smallness assumptions are necessary in most cases (Remark 2.6, Remark 3.5, Remark 4.7, Remark 5.4 and Remark 6.5).

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Boundary H\"older gradient estimates for parabolic $p$-Laplace type equations

    math.AP 2025-06 conditional novelty 7.0 of 10

    This paper establishes boundary pointwise and global C^{1,α} gradient estimates for viscosity solutions of parabolic p-Laplace type equations with general boundary data.

  2. A generalization of Savin's small perturbation theorem for fully nonlinear elliptic equations and applications

    math.AP 2025-09 conditional novelty 6.0 of 10

    A generalized small perturbation theorem yields interior C^{2,alpha} regularity for nonhomogeneous locally uniformly elliptic equations and measure-zero singular sets for sigma_k(D^2u)=f with positive Lipschitz f.

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