Programme de classification hiérarchique par l'algorithme de la recherche en chaîne des voisins réciproques
Le programme HIVOR de classification ascendante hiérarchique selon les voisins réciproques et le critère de la variance
Periodic boundary value problem for second order integro-ordinary differential equations with general kernel and Carathéodory nonlinearities.
Periodic solutions for third order ordinary differential equations.
Disjointness preserving mappings between Fourier algebras
Periodic-Neumann boundary value problem for nonlinear parabolic equations and application to an elliptic equation
In this paper we study the periodic-Neumann boundary value problem for a class of nonlinear parabolic equations. We prove a new uniqueness result and study the structure of the set of solutions when there exist more than one solution. The ideas are applied to a Neumann problem for an elliptic equation.
Periodic solutions for third order ordinary differential equations
In this paper, we introduce the concept of upper and lower solutions for third order periodic boundary value problems. We show that the monotone iterative technique is valid and obtain the extremal solutions as limits of monotone sequences. We first present a new maximum principle for ordinary differential inequalities of third order that is interesting by itself.
Remarks on some nonlinear Dirichlet problems with unbounded nonlinearities
Counting connected components of the complement of the image of a codimension 1 map
Factorización polinomial de números enteros.
A note on a connection between the Poincaré-Arnold-Melnikov integral and the Picard-Vessiot theory
We obtain an algebraic interpretation by means of the Picard-Vessiot theory of a result by Ziglin about the self-intersection of complex separatrices of time-periodically perturbed one-degree of freedom complex analytical Hamiltonian systems.
The Harnack inequality for -harmonic functions.
Existence of extremal solutions for quadratic fuzzy equations.
Existence of solutions for nonlocal boundary value problems of higher-order nonlinear fractional differential equations.
On exact controllability of first-order impulsive differential equations.
Solvability of nonlinear Langevin equation involving two fractional orders with Dirichlet boundary conditions.
The monotone iterative technique for three-point second-order integrodifferential boundary value problems with -Laplacian.
Existence and uniqueness of solutions to first-order systems of nonlinear impulsive boundary-value problems with sub-, super-linear or linear growth.
Large time behavior of solutions to a class of doubly nonlinear parabolic equations.
A generalized upper and lower solutions method for nonlinear second order ordinary differential equations.
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