| 实函数半连续、连续的某些充要条件 |
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| 引用本文： | 周基元. 实函数半连续、连续的某些充要条件[J]. 怀化学院学报, 2000, 0(2) |
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| 作者姓名： | 周基元 |
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| 作者单位： | 怀化师专数学系!湖南怀化418008 |
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| 摘 要： | 从函数上、下极限的角度 ,讨论了连续函数的几个充要条件
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| 关 键 词： | 连续 上半连续 下半连续 开集 闭集 |
Several Necessary and Sufficient Conditions of the Demicontinuity and the Continuity of the Real Valued Function |
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| ZHOU Ji yuan. Several Necessary and Sufficient Conditions of the Demicontinuity and the Continuity of the Real Valued Function[J]. Journal of Huaihua University, 2000, 0(2) |
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| Authors: | ZHOU Ji yuan |
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| Abstract: | In this paper we discussed several necessary and sufficient conditions of the continuous function on the basis of the limes inferiores and the limes superiores of the function. |
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| Keywords: | continuity demicontinuity from above demicontinuity from below open set closed aggregate |
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