Abstract
To apply the Hahn-Banach theorem, we use the approximate Chebyshev center \(Z_G^\varepsilon \left( A \right) \equiv \left\{ {y \in G;r\left( {y,A} \right) \leqslant \pi \left( {1 + \varepsilon } \right){r_G}\left( A \right)} \right\}\).
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© 1986 Springer Basel AG
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Amir, D. (1986). Combining the Garkavi-Klee Condition with the Hahn-Banach Theorem. In: Characterizations of Inner Product Spaces. Operator Theory: Advances and Applications, vol 20. Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-5487-0_17
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DOI: https://doi.org/10.1007/978-3-0348-5487-0_17
Publisher Name: Birkhäuser, Basel
Print ISBN: 978-3-0348-5489-4
Online ISBN: 978-3-0348-5487-0
eBook Packages: Springer Book Archive