| 一种弱于弱可微的可微性 |
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| 引用本文： | 钮宏霞,马振军.一种弱于弱可微的可微性[J].鲁东大学学报,1999(1). |
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| 作者姓名： | 钮宏霞 马振军 |
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| 作者单位： | 昌潍师专数学系 |
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| 摘 要： | 利用对称可微概念，讨论了对称可微与可微、弱可微、偏导数存在及连续之间的关系，给出了对称可微是弱可微的一个充分条件．
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| 关 键 词： | 对称导数，方向导数，对称可微，弱可微 |
A kind of differentiability weaker than weak one |
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| Niu Hongxia,Ma Zhenjun.A kind of differentiability weaker than weak one[J].Ludong University Journal (Natural Science Edition),1999(1). |
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| Authors: | Niu Hongxia Ma Zhenjun |
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| Abstract: | The relations between symmetric differentiability with differentiability,weak differentiability,partial derivative existing or continuity are discussed by using the concept of symmetric differentiability.A sufficient condition that symmetric differentiability is the weak one is given. |
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| Keywords: | symmetric derivative directional derivative symmetric differentiability weak differentiability |
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