On some inverse problems for partial differential equations
On some modification of the Levinson operator and its application to a three-point boundary value problem
On some nonlinear alternatives of Leray-Schauder type and functional integral equations
In this paper, some new fixed point theorems concerning the nonlinear alternative of Leray-Schauder type are proved in a Banach algebra. Applications are given to nonlinear functional integral equations in Banach algebras for proving the existence results. Our results of this paper complement the results that appear in Granas et. al. (Granas, A., Guenther, R. B. and Lee, J. W., Some existence principles in the Caratherodony theory of nonlinear differential system, J. Math. Pures Appl. 70 (1991),...
On some non-linear boundary value problems for ordinary differential equations
On some non-local problems of the theory of elasticity.
On some optimal control problems governed by a state equation with memory
The aim of this paper is to study problems of the form: with where V is a set of admissible controls and yu is the solution of the Cauchy problem: , and each is a nonnegative measure with support in [0,t]. After studying the Cauchy problem, we establish existence of minimizers, optimality conditions (in particular in the form of a nonlocal version of the Pontryagin principle) and prove some regularity results. We also consider the more general case where the control also enters the dynamics...
On some possible extensions of Massera's theorem.
On some problems in the oscillation theory of self-adjoint linear differential equations
On some problems of the theory of the difference schemes
On some properties of functions relative to the classes of certain factor spaces
On some properties of solutions of second-order linear functional differential equations.
On some properties of solutions of the disconjugate equation with an almost periodic coefficient
On some properties of solutions of the second order linear differential equations with periodic coefficients having a common oneparametric continuous group of dispersions
On some properties of the solution of the differential equation
In the paper it is shown that each solution ot the initial value problem (2), (3) has a finite limit for , and an asymptotic formula for the nontrivial solution tending to 0 is given. Further, the existence of such a solutions is established by examining the number of zeros of two different solutions , .
On some properties of the solutions of the third order nonlinear differential equations with delay
On some properties of third-order linear differential equation
On some properties of trigonometric matrices
On some qualitative behaviors of solutions to a kind of third order nonlinear delay differential equations.
On some qualitative methods for systems of ordinary diferential equations in the large
On some recent results on the numerical problems in semiconductor device simulation