3noWe prove the existence of periodic solutions of some infinite-dimensional systems by the use of the lower/upper solutions method. Both the well-ordered and non-well-ordered cases are treated, thus generalizing to systems some well-established results for scalar equations.reservedmixedFonda A.; Klun G.; Sfecci A.Fonda, A.; Klun, G.; Sfecci, A
AbstractThe paper deals with the second order differential systems with periodic boundary conditions...
AbstractWe show that if u is a bounded solution on R+ of u″(t) ϵ Au(t) + f(t), where A is a maximal ...
We study second-order ordinary differential equations of Newtonian type. The forcing terms under con...
2noWe prove the existence of bounded and periodic solutions for planar systems by introducing a noti...
The study deals with the existence, uniqueness, and stability of periodic solution of a second order...
The existence of periodic solutions of second-order differential equations has been studied permanen...
summary:In the paper some existence results for periodic boundary value problems for the ordinary di...
AbstractWe give some sufficient conditions for the existence of infinitely many periodic solutions w...
We study the existence of periodic solutions for a nonlinear second order system of ordinary differe...
AbstractHere we are concerned with the problem of the existence of periodic solution for certain sec...
3noThe aim of this paper is to extend the theory of lower and upper solutions to the periodic proble...
Abstract. The rst order dynamical system _z = F (t; z) is consid-ered, where F is T-periodic in time...
AbstractA class of second order ordinary differential equations is considered. It is shown that the ...
AbstractWe consider vector differential equtions x″ + g(t, x, x′) = f(t), x ϵ Rn, and show the exist...
AbstractThe purpose of this paper is to study the existence of periodic solutions of non-autonomous ...
AbstractThe paper deals with the second order differential systems with periodic boundary conditions...
AbstractWe show that if u is a bounded solution on R+ of u″(t) ϵ Au(t) + f(t), where A is a maximal ...
We study second-order ordinary differential equations of Newtonian type. The forcing terms under con...
2noWe prove the existence of bounded and periodic solutions for planar systems by introducing a noti...
The study deals with the existence, uniqueness, and stability of periodic solution of a second order...
The existence of periodic solutions of second-order differential equations has been studied permanen...
summary:In the paper some existence results for periodic boundary value problems for the ordinary di...
AbstractWe give some sufficient conditions for the existence of infinitely many periodic solutions w...
We study the existence of periodic solutions for a nonlinear second order system of ordinary differe...
AbstractHere we are concerned with the problem of the existence of periodic solution for certain sec...
3noThe aim of this paper is to extend the theory of lower and upper solutions to the periodic proble...
Abstract. The rst order dynamical system _z = F (t; z) is consid-ered, where F is T-periodic in time...
AbstractA class of second order ordinary differential equations is considered. It is shown that the ...
AbstractWe consider vector differential equtions x″ + g(t, x, x′) = f(t), x ϵ Rn, and show the exist...
AbstractThe purpose of this paper is to study the existence of periodic solutions of non-autonomous ...
AbstractThe paper deals with the second order differential systems with periodic boundary conditions...
AbstractWe show that if u is a bounded solution on R+ of u″(t) ϵ Au(t) + f(t), where A is a maximal ...
We study second-order ordinary differential equations of Newtonian type. The forcing terms under con...