HAYDAR AKCA

Prof. HAYDAR AKCA

orcid

Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

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

Representative Publications

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29 May 2013 in IMA Journal of Applied Mathematics
Verified
Journal Article
Closed access
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Xiaodi  LiXiaodi Li
Xiaodi Li
Donal O'ReganDonal O'Regan
Donal O'Regan
HAHAYDAR AKCA
HAYDAR AKCA
This paper investigates the stabilization problem of neural networks with unbounded continuously distributed delays via impulsive control. By establishing an impulsive infinite delay differential inequality from the impulsive control point of view, some sufficient conditions ensuring the existence and global exponential stabilization of the unique equilibrium point are derived. Our result shows that impulses can be used to globally and exponentially stabilize the neural networks with unbounded continuously distributed delays if they are not originally stable or exponentially stable. Finally, two examples with their simulations are given to show the effectiveness of the proposed method.

26 February 2015 in Journal of Mathematical Sciences
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Journal Article
Closed access
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HAHAYDAR AKCA
HAYDAR AKCA
VCV. Covachev
V. Covachev
ZCZ. Covacheva
Z. Covacheva

17 February 2016 in Neural Computing and Applications
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Journal Article
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EAEadah Ahmad Alzahrani
Eadah Ahmad Alzahrani
HAHAYDAR AKCA
HAYDAR AKCA
Xiaodi  LiXiaodi Li
Xiaodi Li

1 September 2016 in Applied Mathematics Letters
Verified
Journal Article
Closed access
HAHAYDAR AKCA
HAYDAR AKCA
George E ChatzarakisGeorge E Chatzarakis
George E Chatzarakis
Ioannis StavroulakisIoannis Stavroulakis
Ioannis Stavroulakis

17 October 2012 in Arabian Journal of Mathematics
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Journal Article
Open access
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XFXilin Fu
Xilin Fu
Xiaodi  LiXiaodi Li
Xiaodi Li
HAHAYDAR AKCA
HAYDAR AKCA
In this paper, the exponential state estimation problem for impulsive neural networks with both leakage delay and time-varying delays is investigated. Several sufficient conditions which are given in terms of linear matrix inequalities (LMIs) are derived to estimate the neuron states such that the dynamics of the estimation error is globally exponentially stable by constructing suitable Lyapunov–Krasovskii functionals and employing available output measurements and LMI technique. The obtained results are dependent on the leakage delay and upper bound of time-varying delays and independent of the derivative of time-varying delays. Moreover, some comparisons are made to contrast to some of existing results about state estimation of neural networks. Finally, two numerical examples and their computer simulations are given to show the effectiveness of proposed estimator.

7 September 2017 in Acta Applicandae Mathematicae
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Journal Article
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BQB. Al Qurashi
B. Al Qurashi
AKAbdul Kara
Abdul Kara
HAHAYDAR AKCA
HAYDAR AKCA