About
Professional Summary
Dr. Haydar Akca holds a position of Professor in Applied Mathematics, Abu Dhabi University College of Arts and Sciences, Department of Applied Sciences and Mathematics. He has completed his Ph.D. in Functional Differential Equations, Inonu University, Faculty of Arts and Science, Department of Mathematics and partially in Helsinki University of Technology Institute of Mathematics, Finland in 1983. Previously he was appointed as Visiting Professor in Applied Mathematics, King Fahd University of Petroleum & Minerals, faculty of Science, Department of Mathematics and Statistics, Dhahran, Saudi Arabia, Professor at Akdeniz University, Visiting Professor at Eastern Mediterranean University, Assistant Professor Erciyes University, Kayseri, and Research Assistant at Inonu University, Malatya, and Computer Programmer at Ministry of National Education, Ankara. He has completed 15 funded research projects. His main area of research interest focuses on Functional Differential Equations, Asymptotic Theory, Oscillation Theory for ODE, Mathematical Modelling Using Differential Difference Equations, Approximate Solutions of Differential Equations using, Spline Functions, Difference Equations, and Wavelets and its Applications. He is editor in chief for International Journal of Applied Physics and Mathematics, International Journal: Mathematical Manuscripts, International Journal of Applied Mathematics & Statistics, International Journal of Mathematics and Computation, Associate Editor Journal of Applied Mathematics and Computing and editor for International Journal of Mathematics and Statistics. He is member of editorial board and reviewer for number of journals. Dr. Haydar received honors includes Lifetime Achievement Scientist Award Science, Abu Dhabi University Research Award for the Academic Year 2014-2015, and The British Council Research Grant, Birmingham. He also attended number conferences and seminars. He has supervised 14 graduate thesis. He has published 110 research articles in journals contributed as author/co-author.
Education
Academic Background
Publications (62)
Selected Scholarly Contributions
An oscillation criterion for delay differential equations with several non-monotone arguments.
Akca, H., G.E. Chatzarakis and I.P. Stavroulakis,
Applied Math. Lett.,
| Journal Article
Haydar Akca
2016
Existence of a mild solution to a second-orderimpulsive functional-differential equation with a nonlocal condition.
Akca, H., V. Covachev and Z. Covacheva,
Pliska Studia Math.,
| Journal Article
Haydar Akca
2015
LMI-based stability for singularly perturbed nonlinear impulsive differential systems with delays of small parameter.
Li, X., J. Shen, H. Akca and R. Rakkiyappan,
Applied Math. Comput.,
| Journal Article
Haydar Akca
2015
Global asymptotic stability of cohen-grossberg neural networks of neutral type.
Akca, H., V. Covachev and Z. Covacheva,
J. Math. Sci.,
| Journal Article
Haydar Akca
2015
Global exponential stabilization of impulsive neural networks with unbounded continuously distributed delays.
Li, X., D. O'Regan and H. Akca,
IMA J. Applied Math.,
| Journal Article
Haydar Akca
2015
Global exponential stability of impulsive cohen-grossberg-type BAM neural networks with time-varying and distributed delays.
Akca, H., J. Benbourenane and V. Covachev,
Int. J. Applied Phys. Math.,
| Journal Article
Haydar Akca
2014
Globally exponential stability of impulsive switched systems with continuously distributed delays.
Liua, C., X. Lia and H. Akca,
Universal J. Math. Math. Sci.,
| Journal Article
Haydar Akca
2014
Existence theorem for semilinear impulsive functional differential equations with nonlocal conditions.
Akca, H., J. Benbourenane and V. Covachev,
Int. J. Applied Phys. Math.,
| Journal Article
Haydar Akca
2013
Exponential state estimation for impulsive neural networks with time delay in the leakage term.
Fu, X., X. Li and H. Akca,
Arabian J. Math.,
| Journal Article
Haydar Akca
2013
Improved stability estimates for impulsive reaction-diffusion cohen-grossberg neural networks via hardy-poincare inequality.
Akca, H., V. Covachev and Z. Covacheva,
Tatra Mt. Math. Publ.,
| Journal Article
Haydar Akca
2013
Impulsive delay reaction-diffusion cohen-grossberg neural networks with zero dirichlet boundary conditions.
Akca, H., J. Benbourenane and V. Covachev,
Middle-East J. Sci. Res.,
| Journal Article
Haydar Akca
2013
Uniform stability of impulsive infinite delay differential equations with applications to systems with integral impulsive conditions.
Li, X., H. Akca and X. Fu,
Applied Math. Comput.,
| Journal Article
Haydar Akca
2013
On tracking of a solution of parabolic variational inequalities.
Akca, H. and V. Maksimov,
TWMS J. Applied Eng. Math.,
| Journal Article
Haydar Akca
2012
Uniform stability in terms of two measures for impulsive functional differential equations with infinite delays.
Wang, X., X. Fu, H. Akca and X. Li,
Universal J. Math. Math. Sci.,
| Journal Article
Haydar Akca
2012
Discrete-time counterparts of impulsive Cohen-Grossberg neural networks of neutral type.
Covachev, V., H. Akca and M. Sarr,
Neur. Parallel Sci. Comput.,
| Journal Article
Haydar Akca
2011
Impulsive cohen-grossberg neural networks with S-type distributed delays.
Akca, H. and V. Covachev,
Tatra Mountains Math. Public.,
| Journal Article
Haydar Akca
2011
Impulsive Cohen-Grossberg neural networks with S-type distributed delays and reaction-diffusion terms.
Akca, H., V. Covachev and Z. Covacheva,
Int. J. Math. Comput.,
| Journal Article
Haydar Akca
2011
On tracking trajectory and control of a linear hereditary system.
Akca, H., L. Berezansky and V. Maksimov,
Funct. Differ. Equations,
| Journal Article
Haydar Akca
2011
Numerical-analytical method for finding periodic solutions of the impulsive differential equations with spline functions.
Akca, H., V. Covachev and K.S. Altmayer,
Int. J. Math. Comput.,
| Journal Article
Haydar Akca
2010
Discrete-time cohen-grossberg neural networks with transmission delays and impulses.
Mohamad, S., H. Akca and V. Covachev,
Tatra Mountains Math. Public.,
| Journal Article
Haydar Akca
2009
Spatial discretization of an impulsive Cohen-Grossberg neural network with time-varying and distributed delays and reaction-diffusion terms.
Akca, H. and V. Covachev,
Ann. Univ. Ovidius Constanta,
| Journal Article
Haydar Akca
2009
Exponential stability of artificial neural networks with distributed delays and large impulses.
Sannay, M., K. Gopalsamy and H. Akca,
Nonlinear Anal. Real World Appl.,
| Journal Article
Haydar Akca
2008
Wave forces related to waves conditions and structures characteristics.
Popa, M., H. Akca and V. Breaban,
Ovidius Univ. Ann. Ser. Civil Eng.,
| Journal Article
Haydar Akca
2008
Vulnerability and risk-Evaluation methods in civil engineering.
Cosmin, F., H. Akca and B. Virgil,
Ovidius Univ. Ann. Ser. Civil Eng.,
| Journal Article
Haydar Akca
2008
Discrete-time analogues of impulsive Cohen-Grossberg neural networks with transmission delays.
Mohamad, S., H. Akca and V. Covachev,
Int. J. Math. Comput.,
| Journal Article
Haydar Akca
2008
Discrete-time impulsive Hopfield neural networks with finite distributed delays.
Akca, H., Alassar R., V. Covachev and H.A. Yurtsever,
Comp. Assisted Mech. Eng. Sci.,
| Journal Article
Haydar Akca
2007
Global solutions for an abstract cauchy problem with nonlocal conditions.
Hernandez M.E. and H. Akca,
Int. J. Math. Manuscript,
| Journal Article
Haydar Akca
2007
Stability of neural networks with time varying delays in the presence of impulses.
Akca, H., R. Alassar and V. Covachev,
Adv. Dyna. Syst. Appl.,
| Journal Article
Haydar Akca
2006
Survey on wavelet transform and application in ODE and wavelet networks.
Akca, H., M. Al-Lail and V. Covachev,
Adv. Dyna. Sys. Appl.,
| Journal Article
Haydar Akca
2006
Continuous-time additive Hopfield-type neural networks with impulses.
Akca, H., R. Alassar, V. Covachev, Z. Covacheva and E. Al-Zahrani,
J. Math. Anal. Applic.,
| Journal Article
Haydar Akca
2004
Discrete counterparts of continuous-time additive Hopfield-type neural networks with impulses.
Akca, H., R. Alassar, V. Covachev and Z. Covacheva,
Dyn. Syst. Appl.,
| Journal Article
Haydar Akca
2004
Global exponential periodicity for the discrete analogue of an impulsive Hop: Field neural network with finite distributed delays.
Akca, H., V. Covachev, Z. Covacheva and S. Mohamad,
Functional Differential Equations,
| Journal Article
Haydar Akca
2004
Periodic solutions of neutral impulsive systems with periodic time-dependent perturbed delays.
Covachev, V., H. Akca and E.A. Al-Zahrani,
Funct. Differ. Equat.,
| Journal Article
Haydar Akca
2003
Almost periodic solutions of neutral impulsive systems with periodic time-dependent perturbed delays.
Covachev, V., Z. Covacheva, H. Akca and E.A. Al-Zahrani,
Central Eur. J. Math.,
| Journal Article
Haydar Akca
2003
Nonlocal cauchy problems for semilinear evolution equations.
Boucherif, A. and H. Akca,
Dynamic Syst. Applic.,
| Journal Article
Haydar Akca
2002
functional-differential equations with nonlocal conditions.
Akca, H., A. Boucherif and V. Covachev,
Int. J. Math. Math. Sci.,
| Journal Article
Haydar Akca
2002
Stability estimates of difference schemes for neutral delay differential equations.
Ashyralyev, A. and H. Akca,
Nonlinear Anal.: Theory Methods Applic.,
| Journal Article
Haydar Akca
2001
Difference approximations for impulsive differential equations.
Covachev, V., H. Akca and F. Yenicerioglu,
Applied Math. Comput.,
| Journal Article
Haydar Akca
2001
Second order accuracy difference scheme for approximate solutions of delay differential equations.
Ashyralyev, A., H. Akca and U. Guray,
Funct. Differ. Equat.,
| Journal Article
Haydar Akca
1999
Approximate solutions of the differential equations with delay, nonpolynomial spline functions.
Akca, H. and G. Micula,
Bull. Math. Soc. Sci. Math.,
| Journal Article
Haydar Akca
1999
On oscillation of a linear delay integro-differential equation.
Berezansky, L., E. Braverman and H. Akca,
Dynamic Syst. Applic.,
| Journal Article
Haydar Akca
1999
Dynamical reconstruction of a pair control-trajectory in a system unresolved with respect to derivative.
Akca, H., L. Berezansky and V.I. Maksimov,
Funct. Differ. Equat.,
| Journal Article
Haydar Akca
1998
Periodic solutions of impulsive systems with delay, differential equations.
Akca, H. and V. Covachev,
Funct. Differ. Equat.,
| Journal Article
Haydar Akca
1998
Existence of solutions of a semilinear functional-differential evolution nonlocal problem.
Byszewski, L. and H. Akca,
Nonlinear Anal.: Theory Methods Applic.,
| Journal Article
Haydar Akca
1998
On a mild solution of a semilinear functional-differential evolution nonlocal problem.
Byszewski, L. and H. Akca,
Int. J. Stochastic Anal.,
| Journal Article
Haydar Akca
1997
The numerical treatment of delay differential equations with constant dealy by natural spline functions of even degree.
Micula, G., P. Blaga and H. Akca,
Libertas Mathematica,
| Journal Article
Haydar Akca
1996
On linear integro-differential equations with integral impulsive conditions.
Akca, H., L. Berezansky and E. Braverman,
Zeitschrift fur Analysis und ihre Anwendungen,
| Journal Article
Haydar Akca
1996
Differential-operator equations with bounded delay.
Akca, H., V.B. Shakhmurov and G. Arisan,
Nonlinear Times Digest,
| Journal Article
Haydar Akca
1995
Deficient spline approximations for second order neutral delay differential equations.
Akca, H., G. Micula and G. Arslan,
Studia Mathematica,
| Journal Article
Haydar Akca
1995
On the use of spline functions of even degree for the numerical solution of the delay differential equations.
Blaga, P., G. Micula and H. Akca,
Calcolo,
| Journal Article
Haydar Akca
1995
Continuous approximate solution to the neutral delay differential equations by a simplified Picard's method.
Akca, H., G. Micula and U. Guary,
Studia Mathematica,
| Journal Article
Haydar Akca
1994
Asymptotic properties of the solutions of a class of operator-differential equations.
Akca, H., D. Bainov and M.B. Dimitrova,
Yokohama Math. J.,
| Journal Article
Haydar Akca
1994
Approximate solutions of the second order differential equations with deviating argument by deficient Spline functions.
Akca, H., G. Micula and I. Dag,
Automat. Comput. Applied Math.,
| Journal Article
Haydar Akca
1992
Numerical solutions of system of differential equations with deviating argument by Spline functions.
Akca, H. and G. Micula,
ACTA Tech. Napocensis,
| Journal Article
Haydar Akca
1992
Numerical solutions of differential equation of the order with deviating argument by Spline functions.
Akca, H. and G. Micula,
Bull. Univ. Baia Mare Ser. B,
| Journal Article
Haydar Akca
1991
Mathematical model: Preserving environment.
Akca, H.,
J. Eng. Sci.,
| Journal Article
Haydar Akca
1990
Numerical solutions of differential equation with deviating argument using Spline functions.
Akca, H. and G. Micula,
Studia Mathematica,
| Journal Article
Haydar Akca
1988
Approximate solutions of the second order differential equations with deviating argument by Spline functions.
Akca, H. and G. Micula,
Math. Revue d'Analyse Numerique,
| Journal Article
Haydar Akca
1988
Mathematical modelling: The relation among success, work and adaptability of a student.
Akca, H.,
Applied Math. Notes Can. Math. Soc.,
| Journal Article
Haydar Akca
1988
On the oscillatory type solutions of y""= f( x, y, y', y") and linear multi-step method for the numerical solutions.
Akca, H.,
Pure Applied Math. Sci.,
| Journal Article
Haydar Akca
1988
The friendship of Sturm and Liouville.
Akca, H.,
Bull. Erciyes Univ. Faculty Sci.,
| Journal Article
Haydar Akca
1986
Application of discretization methods in oscillation and comparison theorems.
Akca, H.,
Bull. Erciyes Univ. Faculty Sci.,
| Journal Article
Haydar Akca
1986
