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    DISCRETE-TIME COHEN-GROSSBERG NEURAL NETWORKS WITH TRANSMISSION DELAYS AND IMPULSES 

    Mohamad, Sannay; Akca, Haydar; Covachev, Val´ery (Versita, 2012-11-12)
    A discrete-time analogue is formulated for an impulsive Cohen- -Grossberg neural network with transmission delay in a manner in which the global exponential stability characterisitics of a unique equilibrium point of the ...
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    Continuous-time additive Hopfield-type neural networks with impulses 

    Akca, Haydar; Alassar, Rajai; Covachev, Valéry; Covacheva, Zlatinka; ET.Al. (Elsevier, 2004-02-15)
    We investigate the global stability characteristics of a system of equations modelling the dynamics of additive Hopfield-type neural networks with impulses in the continuous-time case
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    Qualitative Analysis of Dynamic Activity Patterns in Neural Networks 

    Ivanka Stamova; Akca, Haydar; Gani Stamov (Hindawi Publishing Corporation, 2011)
    An abstract second order differential equation such that the linear part of the right-hand side is given by the infinitesimal generator of a strongly continuous cosine family of bounded linear operators while the nonlinear ...
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    Uncertain Dynamical Systems 2014 

    Ivanka Stamova; Akca, Haydar; Gani Stamov (Hindawi Publishing Corporation, 2014)
    The theory and applications of uncertain dynamical systems have become an active research subject in nonlinear science and have attracted more attention in many fields. The methods used in the investigation of their ...
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    Almost periodic solutions of neutral impulsive systems with periodic time-dependent perturbed delays 

    Covachev, Valéry; Covacheva, Zlatinka; Akca, Haydar; ETAL.. (Springer Link, 2003-09)
    A neutral impulsive system with a small delay of the argument of the derivative and another delay which differs from a constant by a periodic perturbation of a small amplitude is considered. If the corresponding system ...
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    Existence of solutions of a semilinear functional-differential evolution nonlocal problem 

    Akca, Haydar; Byszewski, L (PERGAMON, 1997-06)
    In this paper we study the existence of mild and classical solutions of a nonlocal Cauchy problem for a semilinear functional-differential evolution equation. Methods of the functional analysis concerning to a compact ...
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    On a mild solution of a semilinear functional-differential evolution nonlocal problem 

    Akca, Haydar; Ludwik Byszewski (Hindawi, 1997-05)
    The existence, uniqueness, and continuous dependence of a mild solution of a nonlocal Cauchy problem for a semilinear functional-differential evolution equation in a general Banach space are studied. Methods of a Co semigroup ...
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    Discrete-time Cohen-Grossberg neural networks with transmission delays and impulses 

    S, Mohamad,; Akca, Haydar; Covachev, V (Tatra Mountains Mathematical Publication, 2008-08)
    . A discrete-time analogue is formulated for an impulsive Cohen- -Grossberg neural network with transmission delay in a manner in which the global exponential stability characterisitics of a unique equilibrium point of ...
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    Discrete-time counterparts of impulsive Cohen-Grossberg neural networks of neutral type 

    COVACHEV, VALERY; Akca, Haydar; SARR, MAKHTAR (Dynamic Publishers, 2011-07)
    The discrete-time counterpart of an impulsive Cohen-Grossberg neural network of neutral type is introduced. Sufficient conditions for the existence and global asymptotic stability of a unique equilibrium point of the ...
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    On existence of solutions of semilinear impulsive functional differential equations with nonlocal conditions 

    Al-Zahrani, Eada; Akca, Haydar; Covachev, Valéry (Springer Link, 2004)
    The existence, uniqueness and continuous dependence of a mild solution of a semilinear impulsive functional-differential evolution nonlocal Cauchy problem in general Banach spaces are studied. Methods of fixed point theorems, ...
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    Akca, Haydar (48)
    Covachev, Valéry (15)ETAL.. (9)Covacheva, Zlatinka (5)Li, Xiaodi (5)Benbourenane, Jamal (4)Alassar, Rajai (3)Covachev, Val´ery (3)Covachev, Valery (2)Gani Stamov (2)... View MoreSubjectCohen-Grossberg neural networks (7)Impulses (5)Delays (4)Neural networks (4)Nonlocal conditions (4)Differential equation (3)Exponential stability (3)Global stability (3)Impulsive equations (3)Almost periodic solution (2)... View MoreDate Issued2010 - 2020 (28)2000 - 2009 (16)1994 - 1999 (4)Has File(s)Yes (31)No (17)

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