ROCKY MOUNTAIN JOURNAL OF MATHEMATICS, cilt.49, sa.4, ss.1191-1206, 2019 (SCI-Expanded)
In this paper, we study the solvability of a mixed problem of a partial differential equation of high order with fractional derivatives with respect to time and with Sturm-Liouville operators with spatial variables and non-local boundary conditions; the solution is found as a series of eigenfunctions of the Sturm-Liouville operator with non-local boundary conditions.