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- Thongchai Botmart, Piyapong Niamsup, Vu Ngoc Phat
- Applied Mathematics and Computation
- 2011

- Thongchai Botmart, Piyapong Niamsup
- Applied Mathematics and Computation
- 2010

- Thongchai Botmart, Piyapong Niamsup
- Mathematics and Computers in Simulation
- 2007

In this paper, we study perturbed Chua’s system. First, we study the stability of equilibrium points of perturbed Chua’s system. Then, we control the chaotic behavior of perturbed Chua’s system to its equilibrium points using linear feedback control and adaptive control methods. Finally, we study chaos synchronization of perturbed Chua’s system by using… (More)

- Thongchai Botmart, Piyapong Niamsup, Xinzhi Liu
- 2010 11th International Conference on Control…
- 2010

In this paper, we investigate the synchronization of non-autonomous chaotic systems with time-varying delay via delayed feedback control. Using a combination of Riccati differential equation approach, Lyapunov-Krasovskii functional, inequality techniques, some new sufficient conditions for exponentially stability of the error system are formulated in form… (More)

and Applied Analysis 3 The rest of this paper is organized as follows. In Section 2, we give notations, definition, propositions, and lemma for using in the proof of the main results. Delay-dependent sufficient conditions of guaranteed cost control for exponential synchronization of cellular neural networks with various activation functions and interval and… (More)

- Thongchai Botmart
- Proceedings of the 10th World Congress on…
- 2012

In this paper, the problem of exponential stabilization for a class of nonlinear systems with interval discrete and distributed time-varying delays is studied. The time delay is a continuous function belonging to a given interval. Based on the constructing of improved Lyapunov-Krasovskii functionals combined with Leibniz-Newton's formula, new… (More)

- Thongchai Botmart, Piyapong Niamsup
- J. Applied Mathematics
- 2013

We investigate the local exponential synchronization for complex dynamical networks with interval time-varying delays in the dynamical nodes and the switched coupling term simultaneously. The constraint on the derivative of the time-varying delay is not required which allows the time delay to be a fast time-varying function. By using common unitary matrix… (More)

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