Fixed Point Theory for 1-Set Weakly Contractive Operators in Banach Spaces

Fixed Point Theory for 1-Set Weakly Contractive Operators in Banach Spaces

Year:    2013

Analysis in Theory and Applications, Vol. 29 (2013), Iss. 3 : pp. 208–220

Abstract

In this work, using an analogue of Sadovskii's fixed point result and several important inequalities we investigate and give new existence theorems for the nonlinear operator equation $F(x)=\mu x$, $(\mu \geq 1)$ for some weakly sequentially continuous, weakly condensing and weakly $1$-set weakly contractive operators with different boundary conditions. Correspondingly, we can obtain some applicable fixed point theorems of Leray-Schauder, Altman and Furi-Pera types in the weak topology setting which generalize and improve the corresponding results of [3,15,16].

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/ata.2013.v29.n3.2

Analysis in Theory and Applications, Vol. 29 (2013), Iss. 3 : pp. 208–220

Published online:    2013-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    13

Keywords:    Weakly condensing weakly sequentially continuous fixed point theorem operator equation.