Abstract
We study a general model of nonvariational elliptic equations of \(p\)-Laplacian type in quasiconvex domains, which are locally approximated by convex domains. We prove that both the gradient and the associated nonhomogeneous term belong to the same \(L^q\) space for every \(q \in [p, \infty )\). As far as the domain is concerned, our regularity assumption on the boundary is weaker than any other one reported in this direction. In addition, we extend our result in Lebesgue spaces to Orlicz spaces.
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Communicated by L. Caffarelli.
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Byun, SS., Kwon, H., So, H. et al. Nonlinear gradient estimates for elliptic equations in quasiconvex domains. Calc. Var. 54, 1425–1453 (2015). https://doi.org/10.1007/s00526-015-0830-5
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DOI: https://doi.org/10.1007/s00526-015-0830-5