Title of article :
Some results concerning proximinality and co-proximinality
Original Research Article
Author/Authors :
H. Mazaheri، H. Mazaheri نويسنده H. Mazaheri, H. Mazaheri , S.M.S. Modarres، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Abstract :
As a counterpart to best approximation, the best co-approximation in normed linear spaces was introduced by Franchetti and Furi. In this paper, this new concept is employed to improve various characterizations of the proximinal and Chebychev for the special subspace of Banach space.
Keywords :
Chebychev subspace , Proximinal subspace , best approximation , Co-proximinal subspace , Co-Chebychev subspace , Best co-approximation
Journal title :
Nonlinear Analysis Theory, Methods & Applications
Journal title :
Nonlinear Analysis Theory, Methods & Applications