| 修正的Durrmeyer—szasz算子整体加权逼近的等价定理 |
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| 引用本文： | 徐吉华,张泽银.修正的Durrmeyer—szasz算子整体加权逼近的等价定理[J].湖北大学学报(自然科学版),1991(3). |
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| 作者姓名： | 徐吉华 张泽银 |
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| 作者单位： | 湖北大学数学系
(徐吉华)，湖北大学数学系(张泽银) |
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| 摘 要： | 本文讨论修正的Durrmeyer—szasz算子对无界函数的整体加权逼近问题,证得了逼近正定理与逆定理。
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| 关 键 词： | Durrmeyer—szasz算子 整体加权逼近 等价定理 |
GLOBAL APPROXIMATION EQUIVALENT THEOREM FOR MODIFIED DURRMEYER-SZASZ OPERATOR IN POLYNOMIAL WEIGHT SPACE |
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| Xu Jihua Zhang Zeyin.GLOBAL APPROXIMATION EQUIVALENT THEOREM FOR MODIFIED DURRMEYER-SZASZ OPERATOR IN POLYNOMIAL WEIGHT SPACE[J].Journal of Hubei University(Natural Science Edition),1991(3). |
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| Authors: | Xu Jihua Zhang Zeyin |
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| Institution: | Department of Mathematics |
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| Abstract: | In this paper,We consider global weighted approximation by modified Durrmeyer-sza-sz operator for unbounded functions, get direct and inverse approximation theorems. |
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| Keywords: | Durrmeyer-szasz operator Global weighted approximation Equivalent theorem |
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