On the asymptotic stability of solutions of stochastic differential delay equations of second order

O Tunç, C Tunç - Journal of Taibah University for Science, 2019‏ - Taylor & Francis
In this paper, we consider a non-linear stochastic differential delay equation (SDDE) of
second order. We derive new sufficient conditions which guarantee stochastically stability …

On the behaviors of solutions of systems of non-linear differential equations with multiple constant delays

O Tunç - Revista de la Real Academia de Ciencias Exactas …, 2021‏ - Springer
In this paper, non-perturbed and perturbed systems of non-linear differential equations with
multiple constant delays are considered. Five new theorems on the qualitative properties of …

Qualitative analyses of differential systems with time-varying delays via Lyapunov–Krasovskiĭ approach

C Tunç, O Tunç, Y Wang, JC Yao - Mathematics, 2021‏ - mdpi.com
In this paper, a class of systems of linear and non-linear delay differential equations (DDEs)
of first order with time-varying delay is considered. We obtain new sufficient conditions for …

Exploring dynamics of plant–herbivore interactions: Bifurcation analysis and chaos control with Holling type-II functional response

MS Shabbir, Q Din, M De la Sen… - Journal of Mathematical …, 2024‏ - Springer
In this study, we examine the plant–herbivore discrete model of apple twig borer and grape
vine interaction, with a particular emphasis on the extended weak-predator response to …

Qualitative analysis for a variable delay system of differential equations of second order

C Tunç, O Tunç - Journal of Taibah University for Science, 2019‏ - Taylor & Francis
This paper analyzes the stability, uniformly stability, asymptotically stability, boundedness,
uniformly boundedness and square integrability of solutions of a system of differential …

Discrete‐Time Predator‐Prey Model with Bifurcations and Chaos

KS Al-Basyouni, AQ Khan - Mathematical Problems in …, 2020‏ - Wiley Online Library
In this paper, local dynamics, bifurcations and chaos control in a discrete‐time predator‐prey
model have been explored in ℝ+ 2. It is proved that the model has a trivial fixed point for all …

Stability tests and solution estimates for non-linear differential equations

O Tunç - An International Journal of Optimization and Control …, 2023‏ - ijocta.org
This article deals with certain systems of delay differential equations (DDEs) and a system of
ordinary differential equations (ODEs). Here, five new theorems are proved on the …

Delay-dependent stability, integrability and boundedeness criteria for delay differential systems

O Tunç, C Tunç, Y Wang - Axioms, 2021‏ - mdpi.com
This paper deals with non-perturbed and perturbed systems of nonlinear differential systems
of first order with multiple time-varying delays. Here, for the considered systems, easily …

Stability and boundedness criteria of solutions of a certain system of second order differential equations

AA Adeyanju - ANNALI DELL'UNIVERSITA'DI FERRARA, 2023‏ - Springer
This paper provides sufficient conditions for the stability, asymptotic stability, uniform
stability, boundedness and uniformly boundedness of solutions of a certain class of second …

Circuit theory approach to stability and passivity analysis of nonlinear dynamical systems

M Ates - International Journal of Circuit Theory and …, 2022‏ - Wiley Online Library
In this paper, we address the problem of global asymptotic stability and strong passivity
analysis of nonlinear time‐varying systems controlled by a second‐order vector differential …