ACTA UNIVERSITATIS APULENSIS Special Issue ON THE LAGRANGIAN FORMALISM AND THE STABILITY OF A DYNAMICAL SYSTEM
نویسندگان
چکیده
In this paper we consider a dynamical system which represents the model of the airplane flight in the vertical plane. The aim of this paper is to make some geometrical studies of the direct and inverse problems with concrete applications in the dynamical systems. It is studied the Lagrangian formalism for the inverse problem and we find a Lagrangian associated to this dynamical system. Next, we present some direct methods for the study of the stability of this dynamical system and we give the phase portraits. 2000 Mathematics Subject Classification: 37C75, 37D35.
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