M-ACCRETIVE OPERATORS AND FUNCTIONAL DIFFERENTIAL

DIFFERENTIAL EQUATIONS. MOHAMED ALIA AND KHALIL EZZINBI. Université Cadi-Ayyad, Faculté des Sciences Semlalia,. Département de Mathématiques ...
46KB taille 1 téléchargements 281 vues
M-ACCRETIVE OPERATORS AND FUNCTIONAL DIFFERENTIAL EQUATIONS MOHAMED ALIA AND KHALIL EZZINBI

Universit´e Cadi-Ayyad, Facult´e des Sciences Semlalia, D´epartement de Math´ematiques, B.P 2390 Marrakech Maroc. In this work, we study the existence and regularity of solutions in the sense of Evans for some partial functional differential equations with infinite delay. We assume that the nonlinear part is m-accretive operator on a Banach space. The phase space satisfies the known axioms obtained by Hale and Kato [1]. References [1] J.Hale and J.Kato, Phase space for retarded equations with unbounded delay. Funkcia Ekvac, 21 (1978).

1