Journal
APPLIED MATHEMATICS LETTERS
Volume 17, Issue 7, Pages 839-846Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.aml.2004.06.015
Keywords
fixed points; stability; integral equations; nonuniqueness
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We consider a paper of Banas and Rzepka which deals with existence and asymptotic stability of an integral equation by means of fixed-point theory and measures of noncompactness. By choosing a different fixed-point theorem, we show that the measures of noncompactness can be avoided and the existence and stability can be proved under weaker conditions. Moreover, we show that this is actually a problem about a bound on the behavior of a nonunique solution. In fact, without nonuniqueness, the theorems of stability are vacuous. (C) 2004 Elsevier Ltd. All rights reserved.
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