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This article is cited in 1 scientific paper (total in 1 paper)
Best Approximation in Vector Spaces
M. R. Haddadi, H. Mazaheri Yazd University
Abstract:
In this paper, we shall obtain some results on best $f$-approximation in quotient spaces of vector spaces and determine under what conditions $f$-proximinality can be transmitted to and from quotient spaces. Also, in conclusion, we consider the relationship between $f$-approximation subsets and linear functionals on $X$.
Keywords:
vector space, $f$-proximinal subspace, $f$-Chebyshev subspace, quotient space, Hahn–Banach space, linear functional.
Received: 24.10.2009 Revised: 21.01.2010
Citation:
M. R. Haddadi, H. Mazaheri, “Best Approximation in Vector Spaces”, Mat. Zametki, 89:5 (2011), 788–793; Math. Notes, 89:5 (2011), 741–745
Linking options:
https://www.mathnet.ru/eng/mzm8649https://doi.org/10.4213/mzm8649 https://www.mathnet.ru/eng/mzm/v89/i5/p788
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Abstract page: | 396 | Full-text PDF : | 167 | References: | 72 | First page: | 21 |
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