Some new problems in the theory of partial differential equations
Some new results in 1D inverse scattering
Some nonlinear and nonlocal Sturm-Liouville problems motivated by the problem of flutter.
Some nonlinear delay integral inequalities and their discrete analogues.
Some notes on one oscillatory condition of neutral differential equations
The aim of this paper is to present sufficient conditions for all bounded solutions of the second order neutral differential equations of the form (r(t)(x(t) - px(t-τ))')' - q(t)f(x(σ(t))) = 0 to be oscillatory and to compare some existing results.
Some notes on oscillation of two-dimensional system of difference equations
Oscillatory properties of solutions to the system of first-order linear difference equations are studied. It can be regarded as a discrete analogy of the linear Hamiltonian system of differential equations. We establish some new conditions, which provide oscillation of the considered system. Obtained results extend and improve, in certain sense, results presented in Opluštil (2011).
Some notes to existence and stability of the positive periodic solutions for a delayed nonlinear differential equations
The paper deals with the existence of positive ω-periodic solutions for a class of nonlinear delay differential equations. For example, such equations represent the model for the survival of red blood cells in an animal. The sufficient conditions for the exponential stability of positive ω-periodic solution are also considered.
Some observations on a Conti's result
An extension of a result of R. Conti is given from which some integro-differential inequalities of the Gronwall-Bellman-Bihari type and a criterion for the continuation of solutions of a system of ordinary differential equations are deduced.
Some operational properties of the H-R operator
Some Opial, Lyapunov, and de la Valée Poussin inequalities with nonhomogeneous boundary conditions.
Some oscillation criteria for the second-order linear delay differential equation
Some Wintner and Nehari type oscillation criteria are established for the second-order linear delay differential equation.
Some oscillation properties of third order linear homogeneous differential equations
Some oscillation theorems for second order differential equations
In this paper we establish some oscillation or nonoscillation criteria for the second order half-linear differential equation where (i) , and on for some ; (ii) for some fixed number . We also generalize some results of Hille-Wintner, Leighton and Willet.
Some oscillation theorems for second order nonlinear differential equations with functional argument
Some oscillatory properties of the perturbed linear differential equations of order
In this paper there are generalized some results on oscillatory properties of the binomial linear differential equations of order ) for perturbed iterative linear differential equations of the same order.
Some Periodicity Criteria for Functional Differential Equations.
Some precise estimates of the hyper order of solutions of some complex linear differential equations.
Some problems concerning different types of vector valued almost periodic functions [Book]
Some problems concerning the equivalences of two systems of differential equations
Some problems concerning the functional differential equations