Resolution Space, Operators and Systems

If one takes the intuitive point of view that a system is a black box whose inputs and outputs are time functions or time series it is natural to adopt an operator theoretic approach to the stUdy of such systems. Here the black box is modeled by an operator which maps an input time function into an...

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Bibliographic Details
Main Author: Saeks, R.
Format: eBook
Language:English
Published: Berlin, Heidelberg Springer Berlin Heidelberg 1973, 1973
Edition:1st ed. 1973
Series:Lecture Notes in Economics and Mathematical Systems
Subjects:
Online Access:
Collection: Springer Book Archives -2004 - Collection details see MPG.ReNa
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245 0 0 |a Resolution Space, Operators and Systems  |h Elektronische Ressource  |c by R. Saeks 
250 |a 1st ed. 1973 
260 |a Berlin, Heidelberg  |b Springer Berlin Heidelberg  |c 1973, 1973 
300 |a X, 270 p  |b online resource 
505 0 |a 1. Causality -- A. Resolution Space -- B. Causal Operators -- C. Closure Theorems -- D. The Integrals of Triangular Truncation -- E. Strictly Causal Operators -- F. Operator Decomposition -- G. Problems and Discussion -- 2. Feedback Systems -- A. Well-Posedness -- B. Stability -- C. Sensitivity -- D. Optimal Controllers -- E. Problems and Discussion -- 3. Dynamical Systems -- A. State Decomposition -- B. Controllability, Observability and Stability -- C. The Regulator Problem -- D. Problems and Discussion -- 4. Time-Invariance -- A. Uniform Resolution Space -- B. Spaces of Time-Invariant Operators -- C. The Fourier Transform -- D. The Laplace Transform -- E. Problems and Discussion -- Appendices -- A. Topological Groups -- A. Elementary Group Concepts -- B. Character Groups -- C. Ordered Groups -- D. Integration on (LCA) Groups -- E. Differentiation on (LCA) Groups -- B. Operator Valued Integration -- A. Operator Valued Measures -- B. The Lebesgue Integral -- C. The Cauchy Integrals -- D. Integration over Spectral Measures -- C. Spectral Theory -- A. Spectral Theory for Unitary Groups -- B. Spectral Multiplicity Theory -- C. Spectral Theory for Contractive Semigroups -- D. Representation Theory -- A. Resolution Space Representation Theory -- B. Uniform Resolution Space Representation Theory -- References 
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653 |a Computer Science 
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520 |a If one takes the intuitive point of view that a system is a black box whose inputs and outputs are time functions or time series it is natural to adopt an operator theoretic approach to the stUdy of such systems. Here the black box is modeled by an operator which maps an input time function into an output time function. Such an approach yields a unification of the continuous (time function) and discrete (time series) theories and simultaneously allows one to formulate a single theory which is valid for time-variable distributed and nonlinear systems. Surprisingly, however, the great potential for such an approach has only recently been realized. Early attempts to apply classical operator theory typically having failed when optimal controllers proved to be non-causal, feedback systems unstable or coupling networks non-lossless. Moreover, attempts to circumvent these difficulties by adding causality or stability constraints to the problems failed when it was realized that these time based concepts were undefined and; in fact, undefinable; in the Hilbert and Banach spaces of classical operator theory