| 关于映射的两个导出映射 |
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| 引用本文： | 张隆辉.关于映射的两个导出映射[J].哈尔滨师范大学自然科学学报,2011,27(1):9-11. |
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| 作者姓名： | 张隆辉 |
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| 作者单位： | 四川职业技术学院 |
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| 摘 要： | 设f：A→B是映射，任意C∈2^A，令f1（C）=f（C），任意D∈2^B，令f2（D）=f^-1（D），则称f1,f2是f的导出映射．研究了单射、满射、双射（及其逆）、映射的积的导出映射，并得到了相应的结果．
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| 关 键 词： | 映射 导出映射 幂集合 单射 满射 双射 逆映射 映射的积 |
On the Two Induced Mappings of Mapping |
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| Zhang Longhui.On the Two Induced Mappings of Mapping[J].Natural Science Journal of Harbin Normal University,2011,27(1):9-11. |
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| Authors: | Zhang Longhui |
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| Institution: | Zhang Longhui(Sichuan Vocational and Technical College) |
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| Abstract: | Setf：A→B is mapping, axbitary C∈2^A, letf1（C） =f（C）, axbitary C∈2^B, letf2（D） =f^-1（D） ,f1 andf2are called induced mapping off. In this article, the induced mappings of injection, surjecfion, bijecfion （and its inverse mapping） , composition of mappings are researched, and the corresponding results are obtained. |
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| Keywords: | Mapping Induced mapping Power set Injection Surjection Bijection Inverse mapping Composition of mappings |
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