Taiwanese Journal of Mathematics


Donghui Fang Fang, Chong Li, and Xianfa Luo

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This paper is concerned with the problem of nonlinear best simultaneous approximations in conditional complete lattice Banach spaces with a strong unit. Characterization results of the best simultaneous approximation from simultaneous suns and suns are established. A counterexample, to which the characterization theorem for convex sets due to Mohebi ( Numer. Funct. Anal. Optim., 25 (2004), 685-705) fails, is provided and a corrected version of the theorem is presented.

Article information

Taiwanese J. Math., Volume 12, Number 9 (2008), 2373-2385.

First available in Project Euclid: 18 July 2017

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Zentralblatt MATH identifier

Primary: 41A28: Simultaneous approximation 26B25: Convexity, generalizations

conditional complete lattices Banach space sun simultaneous sun simultaneous approximation characterization


Fang, Donghui Fang; Li, Chong; Luo, Xianfa. NONLINEAR SIMULTANEOUS APPROXIMATION IN COMPLETE LATTICE BANACH SPACES. Taiwanese J. Math. 12 (2008), no. 9, 2373--2385. doi:10.11650/twjm/1500405185. https://projecteuclid.org/euclid.twjm/1500405185

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