Studium des Resonanzfalles bei gewöhnlichen linearen reduzierten Differentialgleichungen mit periodischen Koeffizienten
Sturmian theorems for systems of differential equations.
Sturmian theory and transformations for the Riccati equation
Sturm-Picone comparison theorem of second-order linear equations on time scales.
Sturm's theorem for equations with delayed argument.
Su alcuni criteri di oscillazione per le equazioni differenziali lineari del secondo ordine
Sufficient conditions for oscillation and nonoscillation of the solutions of operator-differential equations with piecewise constant argument
Effective sufficient conditions for oscillation and nonoscillation of solutions of some operator-differential equations with piecewise constant argument are found.
Sufficient conditions for oscillations of all solutions of a class of impulsive differential equations with deviating argument.
Sufficient conditions for the oscillation of -th order nonlinear delay differential equation
Sufficient conditions for the oscillation of solutions to nonlinear second-order differential equations.
Sulla risoluzione asintotica dell’equazione , con matrice , nel caso oscillante
Sulla risoluzione asintotica dell’equazione , con matrice , nel caso oscillante. - II
Sur le pilotage dans un champ de forces répulsives
Sur quelques applications des dispersions centrales dans la théorie des équations différentielles linéaires du deuxième ordre
Sur une synthèse pratique de deux méthodes qualitatives d'étude des équations différentielles
Test for disconjugacy of a differential inclusion of neutral type.
The argument delay and oscillatory properties of differential equation of -th order
The asymptotic behaviour of solutions of the differential equation of the third order
The asymptotic properties of the solutions of the -th order neutral differential equations
The first conjugate point of solution of the -th order iterated differential equation