The theory of ill-posed problems originated in an unusual way. As a rule, a new concept is a
subject in which its creator takes a keen interest. The concept of ill-posed problems was …

The book is devoted to the foundations of the theory of boundary-value problems for various
classes of systems of differential-operator equations whose linear part is represented by …

We obtain a representation of a solution of the Cauchy problem for a linear inhomogeneous
differential equation with constant coefficients and pure delay. We use special matrix …

By using methods of the theory of generalized inverse matrices, we establish a criterion of
solvability and study the structure of the set of solutions of a general linear Noether …

Criterion of the solvability of matrix equations of the Lyapunov type Page 1 Ukrainian
Mathematical Journal, Vol. 50, No. 1998 CRITERION OF THE SOLVABILITY OF MATRIX …

Solution of one heat equation with delay × Close The Infona portal uses cookies, ie strings of
text saved by a browser on the user's device. The portal can access those files and use them to …

We establish constructive conditions for the existence of solutions of an autonomous
Noetherian weakly nonlinear boundary-value problem for a system of ordinary differential …

Матричные уравнениÿ Лÿпунова широко используютсÿ в теории устойчивости
движениÿ, а также при решении дифференциальных уравнений Риккати. Если …

Conditions are derived of the existence of solutions of nonlinear boundary‐value problems
for systems of n ordinary differential equations with constant coefficients and single delay (in …

By means of the theory of generalized inversion of operators in Banach spaces, a solvability
criterion and a general form of solutions for integro-differential equations with a degenerate …