Sur quelques relations intégrales entre les solutions de l'équation biconfluente de Heun
Sur quelques systèmes particuliers d'équations différentielles.
Sur un cas particulier de résolution des équations différentielles linéaires à coefficients constants
Sur un cas particulier d’intégration de l’équation
Sur une classe d'équations différentielles lineaires du deuxième ordre resolubles par quadratures
Sur une classe des groupes continus à un paramètre formés des fonctions réelles d'une variable
Sur une équation différentielle linéaire d’ordre dont la solution générale est un polinome de -ème degré
Sur une équation différentielle linéaire du second ordre
Sur une transformation de équation différentielle linéaire d'un ordre quelconque
Symmetries and solvability of linear differential equations.
The canonical form theorem, applied to a certain group of symmetry transformations of certain Fuchsian equations, leads automatically to the integration of them. The result can be extended to any n-order differential equation possesing a certain pointlike group of symmetries with a maximal abelian Lie-subgroup of order c.
Symmetry properties of autonomous integrating factors.
Tests for disconjugacy and strict disconjugacy of linear differential equations with delays
The asymptotic solution of higher-order differential equations with small final coefficient
The bang-bang principle for a class of uncertain evolution linear differential [equations] in Hilbert spaces.
This paper deals with the problem of time-varying differential systems when unmodeled dynamics is present. The questions related to when unmodeled dynamics (in fact when parametrical and order errors) does not affect for problems like controllability and related ones with respect to the foreseen results for a correct modelling are investigated for a wide class of typical situations. The presented results seem to be of interest in Physics when modelling uncertainties are present. Only the linear...
The basic properties of phase matrices of linear differential systems
The Central Connection Problem at Turning Points of Linear Differential Equations
The characteristic multipliers of a block and of an inverse block of second-order linear differential equations with -periodic coefficients
The effect of infinitesimal damping on the dynamic instability mechanism of conservative systems.
The Equivalence Of Certain Linear And Nonlinear Differential Equations Of N-th Order
The first, the second, and the third Liouville formula and periodical solutions of linear differential equation of the second order