| 一类二元函数二重极限存在的充要条件 |
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| 引用本文： | 旷华武,秦新波. 一类二元函数二重极限存在的充要条件[J]. 贵州大学学报(自然科学版), 2011, 28(3): 7-10 |
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| 作者姓名： | 旷华武 秦新波 |
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| 作者单位： | 贵州大学理学院,贵州贵阳,550025 |
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| 摘 要： | 应用Cauchy不定式,建立了一类二元函数二重极限存在的充分必要条件,并举例说明了其应用.
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| 关 键 词： | 二重极限 Cauchy不定式 充分条件 必要条件 |
The Sufficient and Necessary Conditions for the Existence of the Double Limits for a Class of Bivariable Functions |
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| KUANG Hua-wu,QIN Xin-bo. The Sufficient and Necessary Conditions for the Existence of the Double Limits for a Class of Bivariable Functions[J]. Journal of Guizhou University(Natural Science), 2011, 28(3): 7-10 |
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| Authors: | KUANG Hua-wu QIN Xin-bo |
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| Affiliation: | (College of Science,Guizhou University,Guiyang 550025,China) |
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| Abstract: | Using Cauchy inequality,the sufficient and necessary conditions for the existence of the double limits for a class of bivariable functions were established.Some examples were given to explain its applications. |
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| Keywords: | double limit Cauchy inequality sufficient condition necessary condition |
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