Technical Communique: Feedback Nash equilibria in the scalar infinite horizon LQ-game

  • Authors:
  • Jacob Engwerda

  • Affiliations:
  • Department of Econometrics, Tilburg University, P.O. Box 90153, 5000 LE Tilburg, Netherlands

  • Venue:
  • Automatica (Journal of IFAC)
  • Year:
  • 2000

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Abstract

In this note we consider linear stationary feedback Nash equilibria of the scalar linear-quadratic differential game. The planning horizon considered is assumed to be infinite. We present both necessary and sufficient conditions on the system parameters for the existence of a unique solution of the associated algebraic Riccati equations (ARE) that stabilizes the closed-loop system. For the case of more solutions, singleton-valued refinements of the equilibrium concept are studied.