On a correspondence between regular and non-regular operator monotone functions

被引:23
|
作者
Gibilisco, P. [2 ]
Hansen, F. [3 ]
Isola, T. [1 ]
机构
[1] Univ Roma Tor Vergata, Dipartimento Matemat, I-00133 Rome, Italy
[2] Univ Roma Tor Vergata, Dipartimento SEFEMEQ, Fac Econ, I-00133 Rome, Italy
[3] Univ Copenhagen, Dept Econ, DK-1455 Copenhagen K, Denmark
关键词
Operator monotone functions; Matrix means; Quantum Fisher information; SKEW INFORMATION; INEQUALITIES;
D O I
10.1016/j.laa.2008.11.022
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We prove the existence of a bijection between the regular and the non-regular operator monotone functions satisfying a certain functional equation. As an application we give a new proof of the operator monotonicity of certain functions related to the Wigner-Yanase-Dyson skew information. (C) 2008 Elsevier Inc. All rights reserved.
引用
收藏
页码:2225 / 2232
页数:8
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