The Application of Crossed Products to the Stability and Design of Time- Varying Systems

Abstract

The research conducted for the past two years into linear time- varying systems is outlined. Corssed product algebras make precise the intuitive idea of a class of systems which can be synthesized from the usual delay elements and a fixed class of time-varying gains. It has been shown that crossed products appear to be a most appropriate setting for input-output analysis of linear time-varying dynamical systems; they also always admit a bounded decomposition of a Hermitian operator into the sum of a causal operator and its adjoint. Finally it has been shown that in the context of crossed products it is possible (with a restriction on the class of time-varying gains) to formulate a generalized transform theory which closely parallels that for time-invariant systems, and yields previously known results for periodic systems.

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Document Details

Document Type
Technical Report
Publication Date
Jun 14, 1981
Accession Number
ADA116998

Entities

People

  • J. Murray

Organizations

  • Texas Tech University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Air Force
  • Algebra
  • Algebraic Geometry
  • Decomposition
  • Electrical Engineering
  • Engineering
  • Frequency
  • Frequency Domain
  • Geometry
  • Hilbert Space
  • Information Science
  • Linear Systems
  • Scientific Research
  • Signal Processing
  • Time
  • Two Dimensional

Fields of Study

  • Mathematics

Readers

  • Control Systems Engineering.
  • Linear Algebra
  • Plasma Physics / Magnetohydrodynamics