On non-fragmentability of Banach spaces |
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Authors: | A K Mirmostafaee |
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Institution: | (1) Department of Mathematics, Damghan Faculty of Sciences, P.O. 36715/364, Damghan, Iran |
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Abstract: | In this paper, we use the game characterization of Kenderov and Moors 11] to construct an example of a non-fragmentable Banach
space. More precisely, we will show that ifX is the tree-complete Banach algebra of Haydon and Zizler 3], (X/c
0, weak) is not fragmentable by any metric. In particular, this shows thatX/c
0 cannot be equivalently renormed to be rotund. |
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Keywords: | Fragmentability of Banach spaces topological games |
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