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Proceedings of the American Mathematical Society

ISSN 1088-6826(online) ISSN 0002-9939(print)

 

 

Phi-stable operators and inner approximation-solvability


Author: Ram U. Verma
Journal: Proc. Amer. Math. Soc. 117 (1993), 491-499
MSC: Primary 47H17; Secondary 47H09, 65J15
DOI: https://doi.org/10.1090/S0002-9939-1993-1127144-X
MathSciNet review: 1127144
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Abstract: We extend, by applying a theorem of Petryshyn (1970), the approximation-solvability of the nonlinear functional equations involving strongly stable Hilbert space mappings to the case of strongly $ \phi $-stable mappings--a new and rather general class of mappings. These mappings constitute a generalization of monotone mappings. Finally, we upgrade the obtained results to the case of Banach space mappings.


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DOI: https://doi.org/10.1090/S0002-9939-1993-1127144-X
Article copyright: © Copyright 1993 American Mathematical Society