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Adyghe Int. Sci. J., 2024 Volume 24, Issue 3, Pages 11–18 (Mi aman91)

MATHEMATICS

On the generalized boundary value problem for a linear ordinary delay differential equation with Dzhrbashyan–Nersesyan derivative

M. G. Mazhgikhova

Institute of Applied Mathematics and Automation, Nalchik

Abstract: In this paper, a solution to a boundary value problem with generalized Sturm-type conditions for a linear ordinary delay differential equation with the Dzhrbashyan–Nersesyan fractional differentiation operator of arbitrary order, is constructed. For the problem under study, an explicit representation of the solution and a condition for unique solvability are obtained. An existence and uniqueness theorem is formulated. The solution to the problem is written out in terms of a special function $W_\nu (t)$, which is defined in terms of the generalized Mittag-Leffler function.

Keywords: fractional differential equation, fractional derivative, Dzhrbashyan–Nersesyan derivative, delay differential equation, generalized boundary conditions, Sturm-type conditions, generalized Mittag-Leffler function

UDC: 517.91

Received: 14.09.2024
Revised: 23.09.2024
Accepted: 24.09.2024

DOI: 10.47928/1726-9946-2024-24-3-11-18



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© Steklov Math. Inst. of RAS, 2026