On the stability properties of linear dynamic time-varying unforced systems involving switches between parameterizations from topologic considerations via graph theory

Authors:
M. De la Sen;A. Ibeas
Affiliations:
Department of Electricity and Electronics, Faculty of Science and Technology, Instituto de Investigacion y Desarrollo de Procesos IIDP, University of the Basque Country, Aptdo, Bilbao, Spain;Department of Electricity and Electronics, Faculty of Science and Technology, Instituto de Investigacion y Desarrollo de Procesos IIDP, University of the Basque Country, Aptdo, Bilbao, Spain
Venue:
Discrete Applied Mathematics
Year:
2007

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Graphs, Networks and Algorithms

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Abstract

This paper deals with the stability of linear time-varying systems involving switches through time between different parameterizations of a dynamic linear time-varying system. Graph theory is used to describe the combinations of possible switches of the various sets of parameterizations which ensure the stability of the configurations. Each graph vertex is associated with a particular parameterization while edges (arcs) are associated with switches between the graphs (directed graphs or digraphs). An axiomatic framework is first established concerned with previously known stability results from systems theory related to the achievement of stability when switches between several parameterizations of a dynamic system take place. The axiomatic context is then used to obtain stability results mainly based on the topology of the links between the various configurations associated with a state-trajectory as well as on the nature of the vertices related to the stability of the various isolated parameterizations.