SOLVABILITY AND CONSTRUCTIVE SOLUTION OF A THREE-POINT BOUNDARY VALUE PROBLEM FOR A HYPERBOLIC EQUATION WITH PIECEWISE CONSTANT ARGUMENT AND A DISTRIBUTED PARAMETER. JMMCS [Internet]. 2026 Nov. 6 [cited 2026 Nov. 7];132(4):94-113. Available from: https://bm.kaznu.kz/index.php/kaznu/article/view/2108