Ky Fan Type Best Approximation Theorem for a Class of Factorizable Multifunctions

Ky Fan Type Best Approximation Theorem for a Class of Factorizable Multifunctions

Year:    2012

Analysis in Theory and Applications, Vol. 28 (2012), Iss. 2 : pp. 101–110

Abstract

An existence result on Ky Fan type best approximation is proved. For this purpose, a class of factorizable multifunctions and the other one being a demicontinuous, relative almost quasi-convex, onto function on an approximately weakly compact, convex subset of Hausdorff locally convex topological vector space are used. As consequence, this result extends the best approximation results of Basha and Veeramani[8] and many others.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.3969/j.issn.1672-4070.2012.02.001

Analysis in Theory and Applications, Vol. 28 (2012), Iss. 2 : pp. 101–110

Published online:    2012-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    10

Keywords:    Almost affine almost quasi convex approximately weakly compact best approximation demicontinuous map locally convex space relative almost quasi convex Kakutani factorizable multifunction upper semicontinuous map.