M. Hymavathi

Dr. M. Hymavathi


Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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29 December 2021 in Fractal and Fractional
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Journal Article
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MAMohammed Yacoob Syed Ali
Mohammed Yacoob Syed Ali
MHM. Hymavathi
M. Hymavathi
ASAsma Kauser Syeda
Asma Kauser Syeda
GRGrienggrai Rajchakit
Grienggrai Rajchakit
PHPorpattama Hammachukiattikul
Porpattama Hammachukiattikul
NBNattakan Boonsatit
Nattakan Boonsatit
This article examines the drive-response synchronization of a class of fractional order uncertain BAM (Bidirectional Associative Memory) competitive neural networks. By using the differential inclusions theory, and constructing a proper Lyapunov-Krasovskii functional, novel sufficient conditions are obtained to achieve global asymptotic stability of fractional order uncertain BAM competitive neural networks. This novel approach is based on the linear matrix inequality (LMI) technique and the derived conditions are easy to verify via the LMI toolbox. Moreover, numerical examples are presented to show the feasibility and effectiveness of the theoretical results.

2 March 2022 in Fractal and Fractional
Verified
Journal Article
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MHM. Hymavathi
M. Hymavathi
G. MuhiuddinG. Muhiuddin
G. Muhiuddin
MAMohammed Yacoob Syed Ali
Mohammed Yacoob Syed Ali
JAJehad Faisal Al Amri
Jehad Faisal Al Amri
GUNASEKARAN NALLAPPANGUNASEKARAN NALLAPPAN
GUNASEKARAN NALLAPPAN
R. VadivelR. Vadivel
R. Vadivel
This paper investigates the global exponential stability of fractional order complex-valued neural networks with leakage delay and mixed time varying delays. By constructing a proper Lyapunov-functional we established sufficient conditions to ensure global exponential stability of the fractional order complex-valued neural networks. The stability conditions are established in terms of linear matrix inequalities. Finally, two numerical examples are given to illustrate the effectiveness of the obtained results.

25 January 2022 in Fractal and Fractional
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Journal Article
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XHXiuping Han
Xiuping Han
MHM. Hymavathi
M. Hymavathi
SMSumay Sanober Mohamed
Sumay Sanober Mohamed
BDBhawna Dhupia
Bhawna Dhupia
MAMohammed Yacoob Syed Ali
Mohammed Yacoob Syed Ali
This paper is concerned with the problem of the robust stability of fractional-order memristive bidirectional associative memory (BAM) neural networks. Based on Lyapunov theory, fractional-order differential inequalities and linear matrix inequalities (LMI) are applied to obtain a robust asymptotical stability. Finally, numerical examples are presented.

2 November 2022 in Fractal and Fractional
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Journal Article
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MHM. Hymavathi
M. Hymavathi
MAMohammed Yacoob Syed Ali
Mohammed Yacoob Syed Ali
TITarek F. Ibrahim
Tarek F. Ibrahim
BYB. A. Younis
B. A. Younis
KOKHALID OSMAN
KHALID OSMAN
Kanit MukdasaiKanit Mukdasai
Kanit Mukdasai
In this paper, the synchronization of fractional-order uncertain delayed neural networks with an event-triggered communication scheme is investigated. By establishing a suitable Lyapunov–Krasovskii functional (LKF) and inequality techniques, sufficient conditions are obtained under which the delayed neural networks are stable. The criteria are given in terms of linear matrix inequalities (LMIs). Based on the drive–response concept, the LMI approach, and the Lyapunov stability theorem, a controller is derived to achieve the synchronization. Finally, numerical examples are presented to confirm the effectiveness of the main results.

1 January 2025 in Discrete and Continuous Dynamical Systems - S
Verified
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JKJ. Kumar
J. Kumar
VMV. Durai Murugan
V. Durai Murugan
MHM. Hymavathi
M. Hymavathi
MAMohammed Yacoob Syed Ali
Mohammed Yacoob Syed Ali
GTGANESH THAKUR
GANESH THAKUR
This article is devoted to investigating the finite-time synchronization of neutral type fractional-order Bidirectional Associative Memory neural networks with delays via adaptive feedback control strategy. A sufficient condition which ensures the finite-time synchronization of these networks based on a state feedback control scheme is deduced using the generalized Gronwall–Bellman inequality. A new lemma with novel finite-time stability inequality is developed first. On the basis of a new Lyapunov-Krasovskii functional and new computational techniques, finite time synchronization criteria are formulated for the corresponding real-valued drive and response system models. In many practical applications, it is important to remain the states within a certain bound during a specific time-interval. Thus, the finitetime behavior of the networks is more important than the asymptotic behavior of the networks. The investigation on finite-time synchronization for fractional-order bidirectional associative memory neural networks with time delays has important theoretical value and practical significance. Three numerical examples illustrate the feasibility and the effectiveness of the deduced sufficient criteria.

1 June 2023 in Fractal and Fractional
Verified
Journal Article
Open access
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PRPERUMAL Ramachandran
PERUMAL Ramachandran
MHM. Hymavathi
M. Hymavathi
MAMohammed Yacoob Syed Ali
Mohammed Yacoob Syed Ali
BMBatul A. A. Mahmoud
Batul A. A. Mahmoud
WAWaleed Haj Ahmed
Waleed Haj Ahmed
TITarek F. Ibrahim
Tarek F. Ibrahim
This research investigates the synchronization of distributed delayed discrete-time fractional-order complex-valued neural networks. The necessary conditions have been established for the stability of the proposed networks using the theory of discrete fractional calculus, the discrete Laplace transform, and the theory of fractional-order discrete Mittag–Leffler functions. In order to guarantee the global asymptotic stability, adequate criteria are determined using Lyapunov’s direct technique, the Lyapunov approach, and some novel analysis techniques of fractional calculation. Thus, some sufficient conditions are obtained to guarantee the global stability. The validity of the theoretical results are finally shown using numerical examples.