[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.4134/BKMS.2008.45.3.601

ON ω-CHEBYSHEV SUBSPACES IN BANACH SPACES

Shams, Maram (DEPARTMENT OF MATHEMATICS YAZD UNIVERSITY)
Mazaheri, Hamid (DEPARTMENT OF MATHEMATICS YAZD UNIVERSITY)
Vaezpour, Sayed Mansour (DEPARTMENT OF MATHEMATICS YAZD UNIVERSITY)

Publication Information

Bulletin of the Korean Mathematical Society / v.45, no.3, 2008 , pp. 601-606 More about this Journal

Abstract

The purpose of this paper is to introduce and discuss the concept of ${\omega}$ -Chebyshev subspaces in Banach spaces. The concept of quasi Chebyshev in Banach space is defined. We show that ${\omega}$ -Chebyshevity of subspaces are a new class in approximation theory. In this paper, also we consider orthogonality in normed spaces.

Keywords

${\omega}$ -Chebyshev subspaces; orthogonality; proximinal subspaces; Chebyshev subspaces;

Citations & Related Records

Times Cited By Web Of Science : 0 (Related Records In Web of Science)
Times Cited By SCOPUS : 1

Reference
Cited By SCOPUS

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