Existence results for a generalized nonlinear Hammerstein equation on L1 spaces

被引:49
作者
Latrach, Khalid
Taoudi, M. Aziz
机构
[1] Univ Clermont Ferrand, Lab Math, CNRS, UMR 6620, F-63117 Aubiere, France
[2] Fac Sci Semlalia, Dept Math, Marrakech 40000, Morocco
关键词
fixed point theorems; measure of weak noncompactness; nonlinear Hammerstein equations;
D O I
10.1016/j.na.2006.03.022
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this paper we are concerned with existence results for a nonlinear Hammerstein integral equation acting on L-1 vector valued functions. Making use of the De Blasi measure of weak noncompactness we establish a variant of the topological fixed point theorem of Krasnosel' skii for the sum of two operators without requiring weak compactness or weak continuity assumptions. Such a result provides an adequate tool for deriving an existence theory for problem (1. 1). (c) 2006 Elsevier Ltd. All rights reserved.
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页码:2325 / 2333
页数:9
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