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| ε-WEAKLY CHEBYSHEV SUBSPACES OF BANACH SPACES | |
| 作者姓名： | Sh.Rezapour |
| 作者单位： | AzarbaidjanUniversityofTarbiat,Iran |
| 摘 要： | We will define and characterize c-weakly Chebyshev subspaces of Banach spaces. We will prove that all closed subspaces of a Banach space X are ε-weakly Chebyshev if and only if X is reflexive. |
| 关 键 词： | 巴拿赫空间 Chebyshev子空间 近似值 自反性 |
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