A.A. Agrachev, R.V. Gamkrelidze, The quasi-extremality for controlled systems

Title: The quasi-extremality for controlled systems
Authors: A.A. Agrachev, R.V. Gamkrelidze
Journal title: J. Soviet Math.
Year: 1991
Volume: 55
Pages: 1849-1864
Citation:

A. A. Agrachev, R. V. Gamkrelidze, “Quasi-extremality for controllable systems”, Journal of Soviet Mathematics, 1991, 55:4, 1849–1864

Abstract:

A full exposition of the authors' previously announced results about the extremality index of controls in smooth control systems and a generalization
of these results to systems with constraints on the controls.

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