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Volume 9, Issue 4, Article 107 |
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A Note on the Modulus of $U$-Convexity and Modulus of $W^*$-Convexity
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Authors: |
Zhanfei Zuo, Yunan Cui, |
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Keywords:
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Modulus of U-convexity; Modulus of W*-convexity; Coefficient of weak orthogonality; Uniform normal structure; Fixed point. |
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Date Received:
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29/07/08 |
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Date Accepted:
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13/11/08 |
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Subject Codes: |
46B20
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Editors: |
Sever S. Dragomir, |
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Abstract: |
We present some sufficient conditions for which a Banach space  has normal structure in term of the modulus of  -convexity, modulus of  -convexity and the coefficient of weak orthogonality. Some known results are improved.
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