Spin-stabilized spacecrafts: analytical attitude propagation using magnetic torques.
Spontaneously broken symmetries
Sprays and homogeneous connections on
The homogeneity properties of two different families of geometric objects playing a crutial role in the non-autonomous first-order dynamics - semisprays and dynamical connections on - are studied. A natural correspondence between sprays and a special class of homogeneous connections is presented.
Stability analysis of a difference scheme for the vibration equation with a finite number of degrees of freedom
Stability and control in spacecraft dynamics.
Stability and instability for Gevrey quasi-convex near-integrable hamiltonian systems
Stability of a linear oscillator with variable parameters.
Stability of difference analogue of linear mathematical inverted pendulum.
Stability of equilibrium points in the photogravitational two-body problem.
Starre, kippende, wackelige und bewegliche Gelenkvierecke im Raum.
Stochastic Behaviour of a Robot-Safety Device System
Stochastic finite element technique for stochastic one-dimensional time-dependent differential equations with random coefficients.
Structural discontinuities to approximate some optimization problems with a nonmonotone impulsive character
In some preceding works we consider a class of Boltz optimization problems for Lagrangian mechanical systems, where it is relevant a line , regarded as determined by its (variable) curvature function of domain . Assume that the problem is regular but has an impulsive monotone character in the sense that near each of some points to is monotone and is very large. In [10] we propose a procedure belonging to the theory of impulsive controls, in order to simplify into a structurally...
Structure theory for second order 2D superintegrable systems with 1-parameter potentials.
Structures symplectiques singulières génériques
Soit une variété différentiable de dimension paire munie d’une 2-forme différentielle fermée générique . L’apparition éventuelle d’un lieu de dégénérescence du rang de est l’obstacle à ce que soit une structure symplectique. Nous étudions les propriétés géométriques de et nous caractérisons l’algèbre des hamiltoniennes admissibles de i.e. les fonctions différentiables qui possèdent un champ hamiltonien sur .
Study of nonlinear wave processes in plasmas using the formalism of a special Lorentz transformation for a space-independent frame.
Su di un sistema dissipativo soggetto a forze dipendenti dal tempo
Su un problema più generale di quello di De Brun per il moto di un corpo rigido intorno a un punto fisso.
Su una classe di precessioni generalizzate semiregolari del solido pesante
Su una classe di precessioni semiregolari del satellite girostatico in orbita circolare