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Homoclinic solutions of quasiperiodic Lagrangian systems
(Khayyam Publishing, 1995)We consider quasiperiodic positive definite Lagrangian systems and establish the existence of one or more solutions homoclinic (namely asymptotic as $t o \pm \infty$) to a quasiperiodic solution. These results are obtained ... 
Forced oscillations for singular dynamical systems with an application to the restricted three body problem
(Elsevier, 1991)We consider forced dynamical systems with two degrees of freedom having singular potentials and we prove existence of infinitely many classical (noncollision) periodic solutions. These solutions have a prescribed rotation ... 
From individual interactions to collective patterns: A mathematical approach
(2011)A mathematical approach is here discussed, addressed to try and explain the emergence of collective properties of socioeconomic systems with a large number of individuals, based on the knowledge of pairwise individual ... 
Homoclinic solutions of almost periodic Hamiltonian systems
(World Scientific, 1998) 
Doubly asymptotic trajectories of Lagrangian systems in homogeneous force fields
(Springer Verlag (Germany), 1998)We study Lagrangian systems with symmetry under the action of a constant generalized force in the direction of the symmetry field. After Routh's reduction, such systems become nonautonomous with Lagrangian quadratic in ... 
A note on a theorem of Conley and Zehnder
(World Scientific, 1987) 
Doubly asymptotic trajectories of Lagrangian systems and a problem by Kirchhoff
(European Mathematical Society, 1997)We consider Lagrangian systems with Lagrange functions which exhibit a quadratic time dependence. We prove the existence of infinitely many solutions tending, as t → ± ∞, to an «equilibrium at infinity». This result is ... 
On a discrete generalized kinetic approach for modelling persuaders influence in opinion formation processes
(Elsevier, 2008)This paper deals with the definition of a general framework, inspired by the discrete generalized kinetic theory, suitable for the description of the evolution of opinions within a population in the presence of some external ... 
From discrete kinetic and stochastic game theory to modelling complex systems in applied sciences
(World Scientific Publishing, 2004)This paper deals with some methodological aspects related to the discretization of a class of integrodifferential equations modelling the evolution of the probability distribution over the microscopic state of a large ...