Now showing items 1-5 of 5
On the periodic solutions of the static, spherically symmetric Einstein-Yang-Mills equations
(Journal of Mathematical Physics, 2012-12-01) [Artigo]
We prove that the static, spherically symmetric Einstein-Yang-Mills equations do not have periodic solutions when r > 0. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4770046]
Global dynamics of stationary solutions of the extended Fisher-Kolmogorov equation
(Journal of Mathematical Physics, 2011-11-01) [Artigo]
In this paper we study the fourth order differential equation d(4)u/dt(4) + q d(2)u/dt(2) + u(3) - u = 0, which arises from the study of stationary solutions of the Extended Fisher-Kolmogorov equation. Denoting x = u, y = ...
Synchronization and Non-Smooth Dynamical Systems
(Journal of Dynamics and Differential Equations, 2012-03-01) [Artigo]
In this article we establish an interaction between non-smooth systems, geometric singular perturbation theory and synchronization phenomena. We find conditions for a non-smooth vector fields be locally synchronized. ...
Sliding vector fields for non-smooth dynamical systems having intersecting switching manifolds
(Nonlinearity, 2015-02-01) [Artigo]
We consider a differential equation p over dot = X(p), p is an element of R-3, with discontinuous right-hand side and discontinuities occurring on a set Sigma. We discuss the dynamics of the sliding mode which occurs when, ...
Quadratic three-dimensional differential systems having invariant planes with total multiplicity nine
(Rendiconti del Circolo Matematico di Palermo, 2018-12-01) [Artigo]
In this paper we consider all the quadratic polynomial differential systems in R3 having exactly nine invariant planes taking into account their multiplicities. This is the maximum number of invariant planes that these ...