Sturm-Liouville and focal higher order BVPs with singularities in phase variables.
Sturm-Liouville operator with general boundary conditions.
Su un problema ai limiti per certe equazioni astratte del secondo ordine
Subgroups of odd depth—a necessary condition
This paper gives necessary and sufficient conditions for subgroups with trivial core to be of odd depth. We show that a subgroup with trivial core is an odd depth subgroup if and only if certain induced modules from it are faithful. Algebraically this gives a combinatorial condition that has to be satisfied by the subgroups with trivial core in order to be subgroups of a given odd depth. The condition can be expressed as a certain matrix with -entries to have maximal rank. The entries of the matrix...
Successive approximation method for investigating three point boundary value problem with singular matrices.
Successive iteration and positive solutions for nonlinear -point boundary value problems on time scales.
Sufficient condition for existence of solutions for higher-order resonance boundary value problem with one-dimensional p-Laplacian.
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 Uniform Convergence of a Class of Spline Difference Schemes for Singularly Perturbed Problems
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.
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.
Sur l'analyse algébrique I
Sur l'analyse algébrique II
Sur le spectre de quelques opérateurs et les variétés de Jacobi
Sur l'équation de Hill analytique
Sur les équations du type Ψ(x,h)=0 (II)
Sur les fonctions de Green relatives à un domaine d'une dimension
Sur quelques équations différentielles linéaires aréolaires spéciales du II ordre
Sur un problème aux limites de la théorie du transfert de masse et de chaleur