4.5 Article

Partial regularity of minimizers of asymptotically convex functionals with Morrey coefficients

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ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jmaa.2021.124962

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Partial regularity; Holder continuity; Morrey space; Discontinuous coefficient; Asymptotic convexity

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This article focuses on minimizers of a functional integral, refining growth estimates by imposing restrictions on the coefficient, which improves the matching of results to specific problems compared to existing literature.
We consider minimizers of the functional integral(Omega) f(x, u, Du) dx, where f is asymptotically related the function (x, u, xi) bar right arrow a(x,u)G(xi) with G a function with p-Uhlenbeck structure and a is an element of l(0) (Omega x R-N). The main contribution of this article is to refine the growth estimate imposed on f. In particular, we assume that vertical bar f(x, u, xi)vertical bar <= mu(1) (x) + mu(2) (x) vertical bar u vertical bar(s) + M(1 + vertical bar xi vertical bar(2))( p/2), where mu(2) is an element of L-gamma,L-beta (Omega) for some numbers beta and gamma. By assuming only that the coefficient mu(2) belongs to a Morrey space, relative to existing results in the literature we are able to better match our results to a given problem. (C) 2021 Elsevier Inc. All rights reserved.

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