On the Branching of Solutions of Quadratic Differential Equations.
On the bundle of solutions of a nonhomogeneous second order linear differential equation
On the calculation of some differential galois groups.
On the canonical development of Parseval formulas for singular differential operators
Per funzioni opportune si ottiene una formula di Parseval per operatori differenziali singolari di tipo dell'operatore radiale di Laplace-Beltrami. è una funzione spettrale generalizzata di tipo Marčenko e può essere rappresentata per mezzo di un certo nucleo della trasmutazione.
On the cardinality of solutions of multilinear differential equations and applications.
On the Cauchy Problem Concerning Nonlinear Delay Funtional Differential Equations in a Banach Space
On the center of the generalized Liénard system
In this paper, we discuss the conditions for a center for the generalized Liénard system or with , , , , , , and for . By using a different technique, that is, by introducing auxiliary systems and using the differential inquality theorem, we are able to generalize and improve some results in [1], [2].
On the Chaplygin method for partial differential-functional equations of the first order
On the circle criterion for boundary control systems in factor form : Lyapunov stability and Lur’e equations
A Lur’e feedback control system consisting of a linear, infinite-dimensional system of boundary control in factor form and a nonlinear static sector type controller is considered. A criterion of absolute strong asymptotic stability of the null equilibrium is obtained using a quadratic form Lyapunov functional. The construction of such a functional is reduced to solving a Lur’e system of equations. A sufficient strict circle criterion of solvability of the latter is found, which is based on results...
On the circle criterion for boundary control systems in factor form: Lyapunov stability and Lur'e equations
A Lur'e feedback control system consisting of a linear, infinite-dimensional system of boundary control in factor form and a nonlinear static sector type controller is considered. A criterion of absolute strong asymptotic stability of the null equilibrium is obtained using a quadratic form Lyapunov functional. The construction of such a functional is reduced to solving a Lur'e system of equations. A sufficient strict circle criterion of solvability of the latter is found, which is based on...
On the closed-form solution of the improved labor augmented Solow-Swan model.
On the Closedness of the Sum of Two Closed Operators.
On the comparison of error bounds for finite difference schemes.
On the completeness of eigenfunctions and associated functions of irregular multipoint eigenvalue-problems.
On the composition conjectures.
On the concave solutions of the Blasius equation.
On the concept of general solution for impulsive differential equations of fractional-orderq∈ (2,3)
In this paper, we find the formula of general solution for a generalized impulsive differential equations of fractional-order q ∈ (2, 3).
On the conditions for the oscillation of solutions of non-linear third order differential equations
On the Conley index in Hilbert spaces - a multivalued case
We introduce the cohomological Conley type index theory for multivalued flows generated by vector fields which are compact and convex-valued perturbations of some linear operators.
On the connectedness of the set of fixed points of a compact operator in the Fréchet space