Brief paper: Time-scaling symmetry and Zeno solutions

  • Authors:
  • J. M. Schumacher

  • Affiliations:
  • Department of Econometrics and Operations Research and CentER, Tilburg University, P.O. Box 90153, 5000 LE Tilburg, The Netherlands

  • Venue:
  • Automatica (Journal of IFAC)
  • Year:
  • 2009

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Abstract

Symmetries are often helpful in reducing the complexity of the analysis of dynamical systems. Here we discuss a symmetry that combines a transformation in space with a scaling of time. Examples are given of a number of nonsmooth dynamical systems in which a symmetry of this type occurs. The time-scaling symmetry can be combined with return mapping analysis to achieve a dimension reduction in addition to the one already obtained from considering the return map. The method is applied in a study of Zeno behavior in linear systems with relay feedback.