Necessary and sufficient conditions for maximal regularity in the study of elliptic differential equations in Hölder spaces
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Università degli Studi di Bologn, Dipartimento di Matematica, Piazza di Porta S. Donato, 5, 40126 Bologna
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Laboratoire de Mathématiques, U.F.R Sciences, et Techniques, Université du Havre, B.P 540, 76058 Le Havre Cedex
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Hirai Sanso 12-13, Takarazuka 665-0817
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Department of Applied Physics, Osaka University, Suita, Osaka, 565-0871