Science of the Total Environment.
Elsevier B.V..
Vol. 824.
2022.
Abstract: The paper deals with the second boundary-value problem for a second-order differential-difference equation with variable coefficients on the interval (0, d) as well as with the question of conditions on the right-hand side of the equation that ensure the smoothness of the generalized solutions of the boundary-value problem on the whole interval (0, d) for (Formula presented.). © 2022, Pleiades Publishing, Ltd.