Advanced Techniques with Block Matrices of Operators
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Beschreibung
This book introduces several powerful techniques and fundamental ideas involving block matrices of operators, as well as matrices with elements in a C*-algebra. These techniques allow for the solution of problems that may be difficult to treat. Specifically, 2×2 operator matrices yield significant mathematical inequalities in various fields of operator theory and matrix analysis. The authors employ block matrices to simplify complicated problems. Operator matrices have garnered attention for their applications in quantum information and computing theories.
Each chapter concludes with a diverse set of exercises and problems for readers, along with references to relevant literature. Some problems pose open questions, while others challenge readers and provide suggestions for future research. This book is suitable for an advanced undergraduate or graduate course and can be used in the classroom. It also serves as a valuable resource for researchers and students in mathematics and physics who have a basic understanding of linear algebra, functional analysis, and operator theory.
This book introduces several powerful techniques and fundamental ideas involving block matrices of operators, as well as matrices with elements in a C*-algebra. These techniques allow for the solution of problems that may be difficult to treat. Specifically, 2×2 operator matrices yield significant mathematical inequalities in various fields of operator theory and matrix analysis. The authors employ block matrices to simplify complicated problems. Operator matrices have garnered attention for their applications in quantum information and computing theories.
Each chapter concludes with a diverse set of exercises and problems for readers, along with references to relevant literature. Some problems pose open questions, while others challenge readers and provide suggestions for future research. This book is suitable for an advanced undergraduate or graduate course and can be used in the classroom. It also serves as a valuable resource for researchers and students in mathematics and physics who have a basic understanding of linear algebra, functional analysis, and operator theory.
Serves as a valuable resource for studying block matrix techniques with operators Presents modern advancements in block matrix techniques within contemporary operator theory ideal for researchers Targets graduate students with a basic understanding of matrix and operator theory
Autor*in
Mohammad Sal Moslehian
Themen in »Advanced Techniques with Block Matrices of Operators«
Operator matrix Block matrix Operator inequality Unitarily invariant norm Dilation Norm inequality Singular value inequality Eigenvalue inequality PPT matrix Positive map Completely positive map Weakly 2-positive map Choi's map Trace Operator mean
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“This is a research-level monograph that offers an excellent, modern, and relatively self-contained resource for readers with a solid background in operator theory. … This work is unmistakably modern. Its bibliography includes close to 250 references, featuring both classical texts and a substantial number of contemporary sources, particularly from the first two decades of the 21st century. … Readers with a firm grounding in linear algebra and functional analysis will find it especially rewarding.” (Frédéric Morneau-Guérin, zbMATH 1569.47003, 2026)
“In the book under review, several powerful techniques and fundamental ideas involving block matrices of operators are presented. The book consists of fivve chapters. … Every chapter ends with exercises and problems (some of them contain open questions). This makes the book suitable to serve as additional literature in a graduate course in operator theory.” (Janko Bračič, Mathematical Reviews, September 9, 2025)
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