The local formula of representation of a solution for a functional differential equation with the mixed initial condition considering perturbations of delays containing in the phase coordinates and in controls

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Lela Alkhazishvili ◽  
Medea Iordanishvili

Abstract For the perturbed controlled nonlinear delay functional differential equation with the mixed initial condition a formula of the analytic representation of solution is proved in the left neighborhood of the endpoint of main interval. In the formula the effects of perturbations of the delay parameters containing in the phase coordinates and controls, the initial vector, the initial and control functions are detected.

Mathematics ◽  
2020 ◽  
Vol 8 (10) ◽  
pp. 1845
Author(s):  
A. Nachaoui ◽  
T. Shavadze ◽  
T. Tadumadze

For the perturbed controlled nonlinear delay differential equation with the discontinuous initial condition, a formula of the analytic representation of solution is proved in the left neighborhood of the endpoint of the main interval. In the formula, the effects of perturbations of the delay parameter, the initial vector, the initial and control functions are detected.


2020 ◽  
Vol 27 (1) ◽  
pp. 53-66
Author(s):  
Phridon Dvalishvili ◽  
Abdeljalil Nachaoui ◽  
Tamaz Tadumadze

AbstractFor the nonlinear functional differential equation with several constant delays, the variation formulas for its solution are proved, in which the effects of perturbations of delays and the initial moment are detected.


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