关于广义Muirhead平均的Schur幂凸性 |
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引用本文: | 邓勇平,吴善和,何灯. 关于广义Muirhead平均的Schur幂凸性[J]. 数学的实践与认识, 2014, 0(5) |
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作者姓名: | 邓勇平 吴善和 何灯 |
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作者单位: | 龙岩学院数学与计算机科学学院;福清港头中学; |
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基金项目: | 福建省自然科学基金(2012J01014);福建省教育厅资助省属高校科研专项(JK2013051) |
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摘 要: | 对广义Muirhead平均的Schur-幂凸性进行了讨论,给出了判定Muirhead平均的Schur-幂凸性的充要条件.结果改进了Chu和Xia在相关文献中的主要结果,Chu和Xia的结果是结果的特例.
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关 键 词: | 广义Muirhead平均 Schur凸性 Schur-幂凸性 改进 |
The Schur Power Convexity for the Generalized Muirhead Mean |
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Abstract: | The purpose of this paper is to investigate the Schur power convexity for the generalized Muirhead mean.A necessary and sufficient condition for the Schur power convexity of the generalized Muirhead mean is obtained.The main result of this paper not only improves the main results given by Chu and Xia in the literature[2,3,4],but also contains their results as special cases. |
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Keywords: | generalized Muirhead mean Schur convexity Schur power convexity improvement |
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