Aad Dijksma - Böcker
Visar alla böcker från författaren Aad Dijksma. Handla med fri frakt och snabb leverans.
4 produkter
4 produkter
Del 106 - Operator Theory: Advances and Applications
Contributions to Operator Theory in Spaces with an Indefinite Metric
The Heinz Langer Anniversary Volume
Häftad, Engelska, 2012
535 kr
Skickas inom 10-15 vardagar
This volume is dedicated to Heinz Langer, a leading expert in spectral analysis and its applications, in particular to operators in spaces with an indefinite metric, on the occasion of his 60th birthday.The book begins with his biography and list of publications. It contains a selection of research papers, most of which are devoted to spectral analysis of operators or operator pencils with applications to ordinary and partial differential equations. Other papers deal with time-varying systems, interpolation and factorization problems, and topics from mathematical physics. About half of the papers contain further developments in the theory of operators in spaces with an indefinite metric and treat new applications. The book is of interest to a wide audience of pure and applied mathematicians.
Del 96 - Operator Theory: Advances and Applications
Schur Functions, Operator Colligations, and Reproducing Kernel Pontryagin Spaces
Häftad, Engelska, 2012
535 kr
Skickas inom 10-15 vardagar
Generalized Schur functions are scalar- or operator-valued holomorphic functions such that certain associated kernels have a finite number of negative squares. This book develops the realization theory of such functions as characteristic functions of coisometric, isometric, and unitary colligations whose state spaces are reproducing kernel Pontryagin spaces. This provides a modern system theory setting for the relationship between invariant subspaces and factorization, operator models, Krein-Langer factorizations, and other topics. The book is intended for students and researchers in mathematics and engineering. An introductory chapter supplies background material, including reproducing kernel Pontryagin spaces, complementary spaces in the sense of de Branges, and a key result on defining operators as closures of linear relations. The presentation is self-contained and streamlined so that the indefinite case is handled completely parallel to the definite case.
Schur Functions, Operator Colligations and Reproducing Kernel Pontryagin Spaces
Inbunden, Engelska, 1997
852 kr
Skickas inom 10-15 vardagar
Generalized Schur functions are scalar- or operator-valued holomorphic functions such that certain associated kernels have a finite number of negative squares. This book develops the realization theory of such functions as characteristic functions of coisometric, isometric, and unitary colligations whose state spaces are reproduced kernal Pontryagin spaces. This provides a modern system theory setting for the relationship between invariant subspaces and factorization, operator models, Krein-Langer factorizations, and other topics. This text is intended for students and researchers in mathematics and engineering. An introductory chapter contains background material, including reproducing kernal Pontryagin spaces, complementary spaces in the sense of de Branges, and a result on defining operators as closures of linear relations. The presentation is such that the indefinite case is handled parallel to the definite case.
852 kr
Skickas inom 10-15 vardagar
This is a volume in honour of Heinz Langer with original research devoted to spectral analysis of operators or operator pencils with applications to ordinary and partial differential equations. With its interpolation and factorization problems, it should be of use to mathematical physicists.