In this paper we show that the solutions of a divergence form elliptic equation with piece-wise Hoelder continuous coefficients have optimal regularity. The problem arises in studying afiber-reinforced composite media described as a domain D with a finite number of subdomains representing the fibers. The coefficients of the operator loose regularity along the boundaries of the subdomains. We prove that the solution is of class C^{1, alpha}.
Citti G., Ferrari F. (2012). A sharp regularity result of solutions of a transmission problem. PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY, 140, 615-620 [10.1090/S0002-9939-2011-10916-X].
A sharp regularity result of solutions of a transmission problem
CITTI, GIOVANNA;FERRARI, FAUSTO
2012
Abstract
In this paper we show that the solutions of a divergence form elliptic equation with piece-wise Hoelder continuous coefficients have optimal regularity. The problem arises in studying afiber-reinforced composite media described as a domain D with a finite number of subdomains representing the fibers. The coefficients of the operator loose regularity along the boundaries of the subdomains. We prove that the solution is of class C^{1, alpha}.File in questo prodotto:
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