| 关于Banach空间光滑性的两点注记 |
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| 引用本文： | 程立新.关于Banach空间光滑性的两点注记[J].数学研究及应用,1989,9(2):315-316. |
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| 作者姓名： | 程立新 |
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| 作者单位： | 江汉石油学院 |
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| 摘 要： | In this paper, We show that a real or complex Banach space is smooth at x0(∈S(X)) iff, for any y∈S(X).(?)where Xx0,y= span {x0, y} . For a real Banach space X, we obtain that X is F-differentia ble at x0(∈S(X)) iff (?) Remark. The sufficient conditions of the conclusion have been proved by Yu Xintai 2].
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| 关 键 词： | Banach空间 光滑性 支撑映射 |
| 收稿时间： | 1987/3/30 0:00:00 |
Some Notes on Smoothness of Banach Spaces |
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| Cheng Lixin.Some Notes on Smoothness of Banach Spaces[J].Journal of Mathematical Research with Applications,1989,9(2):315-316. |
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| Authors: | Cheng Lixin |
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| Institution: | Jiang Han Petreleum Institute |
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