| Heinz均值凸性的一个注记 |
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| 引用本文： | 邹黎敏.Heinz均值凸性的一个注记[J].浙江大学学报(理学版),2013,40(1):27-28. |
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| 作者姓名： | 邹黎敏 |
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| 作者单位： | 重庆三峡学院数学与统计学院,重庆,404100 |
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| 基金项目： | Supported by Natural Science Foundation Project of Chongqing Science and Technology Commission(No.CSTC,2010BB0314);Scientific Research Project of Chongqing Three Gorges University(No.11QN-21) |
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| 摘 要： | 最近，对于任何的酉不变范数，KITTANEH得到了Heinz不等式的一个改进. 在这篇注记中，得到了KITTANEH结果的一个改进.
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| 关 键 词： | Heinz不等式 酉不变范数 半正定矩阵 |
| 收稿时间： | 2011-07-05; |
A note on the convexity of the Heinz means |
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| ZOU Li-min.A note on the convexity of the Heinz means[J].Journal of Zhejiang University(Sciences Edition),2013,40(1):27-28. |
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| Authors: | ZOU Li-min |
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| Institution: | ZOU Li-min(School of Mathematics and Statistics,Chongqing Three Gorges University,Chongqing 404100,China) |
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| Abstract: | Recently, KITTANEH obtained an improvement of the Heinz inequality for all unitarily invariant norms. In this note, we obtain a refinement of KITTANEH＇s result. We shall conclude this paper with some numerical examples. |
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| Keywords: | Heinz inequality unitarily invariant norms positive semidefinite matrices |
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