Sufficient conditions for the oscillation to bounded solutions of a class of impulsive differential equations of second order with a constant delay.
Sufficient conditions for the solvability of some third order functional boundary value problems on the half-line
This paper is concerned with the existence of bounded or unbounded solutions to third-order boundary value problem on the half-line with functional boundary conditions. The arguments are based on the Green functions, a Nagumo condition, Schauder fixed point theorem and lower and upper solutions method. An application to a Falkner-Skan equation with functional boundary conditions is given to illustrate our results.
Sufficient conditions for two-dimensional point dissipative nonlinear systems.
Sufficient Conditions for Uniform Convergence of a Class of Spline Difference Schemes for Singularly Perturbed Problems
Sugli zeri delle soluzioni di una classe di equazioni differenziali lineari del secondo ordine
Sul problema del rimbalzo in un insieme convesso
In the present paper we seek the bounce trajectories in a convex set which assume assigned positions in two fixed time instants. We find sufficient conditions in order to obtain the existence of infinitely many bounce trajectories.
Sul problema della biforcazione generalizzata di Hopf per sistemi periodici
Sul problema di Cauchy per le equazioni paraboliche astratte di ordine
Sulla diseguaglianza di Wirtinger
Sulla perturbazione delle disequazioni d'evoluzione paraboliche
Sulla risoluzione asintotica dell’equazione , con matrice , nel caso oscillante
Sulla risoluzione asintotica dell’equazione , con matrice , nel caso oscillante. - II
Sulla stabilità asintotica ed instabilità
Sulle equazioni differenziali astratte degeneri
Sulle equazioni paraboliche semilineari di ordine arbitrario in uno spazio di Banach
Summability of first integrals of a -non-integrable resonant Hamiltonian system
This article studies the summability of first integrals of a -non-integrable resonant Hamiltonian system. The first integrals are expressed in terms of formal exponential transseries and their Borel sums. Smooth Liouville integrability and a relation to the Birkhoff transformation are discussed from the point of view of the summability.
Summation of Formal Power Series Through Iterated Laplace Integrals.
Superconvergence for Galerkin Methods for the Two Point Boundary Problem Via Local Projections.
Superconvergence of external approximation for two-point boundary problems
The superconvergence property of a certain external method for solving two point boundary value problems is established. In the case when piecewise polynomial spaces are applied, it is proved that the convergence rate of the approximate solution at the knot points can exceed the global one.
Supercritical nonlinear Schrödinger equations: Quasi-periodic solutions and almost global existence
We construct time quasi-periodic solutions and prove almost global existence for the energy supercritical nonlinear Schrödinger equations on the torus in arbitrary dimensions. The main new ingredient is a geometric selection in the Fourier space. This method is applicable to other nonlinear equations.