The time-varying gap and coprime factor perturbations

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


The connection between the time-varying gap metric and two-block problems is utilized to obtain criteria for robust stabilization of linear, discretetime, time-varying systems. In particular we give a formula for the optimal minimal angle for a stabilizable linear time-varying system and show that it has a maximally stabilizing controller.

Original languageEnglish
Pages (from-to)352-374
Number of pages23
JournalMathematics of Control, Signals, and Systems
Issue number4
StatePublished - 1 Dec 1995


  • Gap metric
  • Robust control
  • Time-varying systems

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Signal Processing
  • Control and Optimization
  • Applied Mathematics


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