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portada Descargar ficha PDF Título: Positive Definiteness Of Funtions With Applications To Operator Norm Inequalitie
Autor: Kosaki, Hideki Precio: $937.20
Editorial: American Mathematical Society Año: 2011
Tema: Edición:
Sinopsis ISBN: 9780821853078
Positive definiteness is determined for a wide class of functions relevant in the study of operator means and their norm comparisons. Then, this information is used to obtain an abundance of new sharp (unitarily) norm inequalities comparing various operator means and sometimes other related operators.

Table of Contents
Introduction
Preliminaries
Fourier transforms and positive definiteness
A certain Heinz-type inequality and related commutator estimates
Norm comparison for various operator means
Norm inequalities for $H^{\frac{1}{2}+\beta}XK^{\frac{1}{2}-\beta}+ H^{\frac{1}{2}-\beta}XK^{\frac{1}{2}+\beta}\pm H^{1/2}XK^{1/2}$
Norm comparison of Heron-type means and related topics
Operator Lehmer means and their properties
Appendix A. A direct proof for Proposition 7.3
Appendix B. Proof for Theorem 7.10
Bibliography
Index
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