Applications and Applied Mathematics: An International Journal (AAM), cilt.17, sa.1, ss.68-80, 2022 (Hakemli Dergi)
In this paper,
we consider a nonlinear perturbed system of neutral delay integro-differential
equations (NDIDEs). We prove two new theorems, Theorems 1 and 2, such that
these theorems include sufficient conditions and are related to asymptotical
stability of zero solution of the perturbed system of NDIDEs. The technique of the proofs
depends upon the definitions of two new and
more suitable Lyapunov-Krasovskiĭ functionals (LKFs). When we compared
the results of this
paper with those found in the literature, our results improve and extend some
classical results, and contribute
new contents to the topic of NDIDEs and to the
profession.