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Educational Qualifications: 

Ph. D. In Mathematics ( Ordinary Differential Equations ) , Science, F U B Germany, 1970


B. Sc. In Mathematics, Science, Assiut University , 1958



Professor, Department of Mathematics , Faculty of Science, ِِAssiut University, 2009


Professor, Department of Mathematics , Faculty of Science, Assiut University, 1990


Associate Professor, Department of Mathematics , Faculty of Science, Assiut University, 1986


Lecturer, Department of Mathematics , Faculty of Science, Assiut University, 1976


Demonstrator, Department of Mathematics , Faculty of Science, Assiut University, 1958

Research fields: Differential Equations
Publications: 
1  A. M. A. AbouElEla, A. I. Sadek, A. M. Mahmoud and E. S. Farghaly, Asymptotic stability of solutions for a certain nonautonomous secondorder stochastic delay differential equation, TURKISH JOURNAL OF MATHEMATICS , Scientific and Technological Council of Turkey, 41(3), 576584, http://journals.tubitak.gov.tr/math/issue.htm?id=2943, June, 2017

2  AbouElEla, A. M. A., Sadek, A. I., Mahmoud, A. M. and Taie, A New Result on the Existence of Periodic Solutions for Fourth
Order Functional Differential Equations with Multiple Deviating Arguments, Nonlinear Analysis and Differential Equations , 3(2), 6988, January, 2015

3  AbouElEla, A. M. A., Sadek, A. I., Mahmoud, A.M. and Taie, R. O. A., A New Instability Result for a Certain System of FourthOrder NonLinear Delay Dif ferential Equation, IOSR Journal of Mathematics , 11(2), 112118, 2015

4  AbouElEla, A. M. A., Sadek, A. I., Mahmoud, A.M. and Taie, R. O. A., A Stability Result for The Solu tions of a Certain System of FourthOrder Delay Dieren tial Equation, International Journal of Dierential Equations, Hindawi Publishing Corporation , vol. 2015, Arti cle ID 618359, 2015

5  AbouElEla, A. M. A., Sadek, A. I., Mahmoud, A.M. and Taie, R. O. A., On the Stochastic Stability and Boundedness of Solutions for Stochastic Delay Dierential Equation of the SecondOrder, Chinese Journal of Mathematics, Hindawi Publishing Corporation , vol. 2015,Ar ticle ID 358936, 2015

6  A. M. A. AbouElEla, A. I. Sadek, A. M. Mahmoud and R. O. A. Taie
, A Stability Result for the Solutions of a Certain System of FourthOrder Delay Differential Equation
, International Journal of Differential Equations
, Hindawi Publishing Corporation, vol. 2015, Article ID 618359, 111, http://dx.doi.org/10.1155/2015/618359, 2015

7  A. M. A. AbouElEla, A. I. Sadek, A. M. Mahmoud and R. O. A. Taie
, New Instability Result for a Certain System of FourthOrder NonLinear Delay Differential Equation
, IOSR Journal of Mathematics, www.iosrjournals.org, 11(2) , 112118, www.iosrjournals.org, DOI: 10.9790/57281121112118, April, 2015

8  A. M. A. AbouElEla, A. I. Sadek, A. M. Mahmoud and R. O. A. Taie
, On the Stochastic Stability and Boundedness of Solutions for Stochastic Delay Differential Equation of the SecondOrder
, Chinese Journal of Mathematic
, Hindawi Publishing Corporation, vol. 2015, Article ID 358936, 18, http://dx.doi.org/10.1155/2015/358936, March, 2015

9  AbouElEla, A. M. A., Sadek, A. I., Mahmoud, A. M. and Taie, R. O. A., A New Result on the Existence of Periodic Solutions for
FourthOrder Functional Differential Equations with
Multiple Deviating Arguments, Nonlinear Analysis and Differential Equations , HIKARI Ltd, 3(2), 6988, www.mhikari.com http://dx.doi.org/10.12988/nade.2015.41123, January, 2015

10  A. M. A. AbouElEla, A. I. Sadek and A. M. Mahmoud, On the stability of solutions for certain secondorder stochastic delay differential equations, Journal Differential Equations and Control Processes, Electronic Journal, reg. N C7739410 at 15.04.2010, N 2, 113, http://www.math.spbu.ru/dijournal, June, 2015

11  AbouElEla, A. M. A., Sadek, A. I., Mahmoud, A. M. and Taie, R. O., New Result on the Ultimate Boundedness of Solutions for Certain FifthOrder Nonautonomous Delay Differential Equation, Advances in Differential
Equations and Control Processes , 14(2), 7188, November, 2014

12  A. M. A. AbouElEla, A. I. Sadek, A. M. Mahmoud and R. O. A. Taie, On the Stability of Solutions of Nonlinear Functional Differential Equation of the FifthOrder, Advances in Pure Mathematics , 4, 357367, http://www.scirp.org/journal/apm, October, 2014

13  AbouElEla, A. M. A. , Sadek, A. I. and Mahmoud, A. M., On the stability of solutions of a certain fourthorder vector delay differential equation
, Ann. of Diff. Eqs., 28(1), 110, 2012

14  AbouElEla, A. M. A. , Sadek, A. I. and Mahmoud, A. M., Existence and uniqueness of a periodic solution for thirdorder delay differential equation with two deviating arguments, Existence and uniqueness of a periodic solution for thirdorder delay differential equation with two deviating arguments, IAENG International Journal of Applied Mathematics, 42(1), 712, 2012

15  AbouElEla, A. M. A. , Sadek, A. I. and Mahmoud, A. M., On the stability criteria of linear nonautonomous timevarying delay system with application to control problem,, Differential Equations and Control Processes, 1, 146163, 2012

16  A. M. A. AbouElEla, A. I. Sadek and A. M. Mahmoud, On the stability of solutions of a certain fourthorder vector delay differential equation, Ann. of Diff. Eqs. , Vol. 28  No. 1, 110, 2012

17  A. M. A. AbouElEla, A. I. Sadek and A. M. Mahmoud, Existence and uniqueness of a periodic solution for thirdorder delay differential equation with two deviating arguments, IAENG International Journal of Applied Mathematics , Vol. 42  No. 1, pp. 712, 2012

18  A. M. A. AbouElEla, A. I. Sadek and A. M. Mahmoud, On the stability criteria of linear nonautonomous timevarying delay system with application to control problem, Journal Differential Equations and Control Processes. , Vol. 1, pp. 146163, 2012

19  A. M. A. AbouElEla, A. I. Sadek and A. M. Mahmoud, On the uniform asymptotic stability of solutions of fourthorder Volterra integrodifferential equation with unbounded delay, presented in the, 8th International Scientific Conference, AlAzhar University, Cairo, Egypt , 2012

20  A.M.A. AbouElEla, A.I. Sadek, A.M. Mahmoud, Periodic Solutions for a Kind of ThirdOrder Delay Differential Equations with a Deviating Argument, J. Math. Sci. Univ. Tokyo , 18, 115, 2011

21  A. M. A. AbouElEla, A. I. Sadek and A. M. Mahmoud, Periodic Solution for Thirdorder Delay Differential Equation with Two Deviating Arguments, J. Math. Sci. Univ. Tokyo, Vol.18, PP. 3549, 2011

22  AbouElEla, A. M. A. , Sadek, A. I. and Mahmoud, A. M., Periodic solutions for a kind of thirdorder delay differential equations with a deviating argument, J. Math. Sci. Univ. Tokyo, 18, 115, 2011

23  AbouElEla, A. M. A., Sadek, A. I. and Tayei R. O. A., Existence of positive periodic solutions of certain thirdorder nonlinear delay differential equation, , Ann. of Diff. Eqs., 27 (4), 409 417, 2011

24  AbouElEla, A. M. A. , Sadek, A. I. and Mahmoud, A. M., On the stability of solutions of a certain nonlinear delay differential equation of the fifthorder, , proceeding in the 3rd Scientific Conference for Young Researchers Basic Science & Technology, Assiut University, Egypt, (Accepted in International Journal of Mathematical Analysis ). , April, 2011

25  A. M. A. AbouElEla, A. I. Sadek and A. M. Mahmoud, On the stability of solutions of a certain nonlinear delay differential equation of the fifthorder, 3rd Scientific Conference for Young Researchers Basic Science & Technology, Assiut University, Egypt , 2011

26  A. M. A. AbouElEla, A. I. Sadek and A. M. Mahmoud, Periodic solutions for a kind of thirdorder delay differential equations with a deviating argument, Math. Sci. Univ. Tokyo , Vol. 18, 115, 2011

27  AbouElEla, A. M. A. , Sadek, A. I. and Farghaly E. O., A stability result for solutions of certain fourthorder nonhomogeneous differential equations, Ann. Of Diff. Eqs , 3, 253 263, 2009

28  AbouElEla, A. M. A., Sadek, A. I. and Mahmoud, A. M., On the stability of solutions of certain fourthorder nonlinear nonautonomous delay differential equation, , International Journal of Applied Mathematics , 22 (2), 245258, 2009

29  AbouElEla, A. M. A. , Sadek, A. I. and Mahmoud, A. M., Stability and boundedness of solutions of certain thirdorder nonlinear delay differential equation, ICGST International Journal on Automatic Control and Systems Engineering, ACSE, ISSN 1687 4811, 9 (1), 915, 2009

30  A. M. A. AbouElEla, A. I. Sadek and A. M. Mahmoud, On the stability of solutions of certain fourthorder nonlinear nonautonomous delay differential equation, International Journal of Applied Mathematics , 22 (2), 245258, February, 2009

31  M. A. AbouElEla, A. I. Sadek and A. M. Mahmoud, Stability and boundedness of solutions of certain thirdorder nonlinear delay differential equation, International Journal on Automatic Control and Systems Engineering , 9 (1), 915, 2009

32  AbouElEla, A. M. A. and Sadek, A. I. , On the asymptotic behaviour of solutions of certain nonautonomous differential equations,, J. Math. Anal. Appl., 237, 360 – 375, 1999

33  AbouElEla, A. M. A. and Sadek, A. I., On the boundedness of a certain system of fifthorder differential equations,, Ann. Of Diff. Eqs. , 14(1), 110, 1998

34  AbouElEla, A. M. A. and Sadek, A. I. , A stability result for the solutions of certain fifthorder differential equations, , Bull. Fac. Sci., Assiut Univ., 24(1c), 1  11, 1995

35  AbouElEla, A. M. A. and Sadek, A. I., A stability theorem for a certain fourth order vector differential equation, , Ann. of Diff. Eqs., 10(2) , 125  134, 1994

36  AbouElEla, A. M. A. and Sadek, A. I., On the asymptotic behaviour of solutions of some differential equations of the fourthorder,, Ann. of Diff. Eqs. , 8(1), 1  12, 1992

37  AbouElEla, A. M. A. and Sadek, A. I., On the boundedness and periodicity of a certain differential equation of fifth order,, Zeitschrift fur Analysis und ihre Anwendungen, Vol. 11(2), 273  244, 1992

38  AbouElEla, A. M. A. and Sadek, A. I. , On asymptotic stability of certain system of fifthorder differential equations, Colloquium on Differential Equations and Applications, August 21  24 , 1991, BudapestHungary ; Ann. of Diff. Eqs. , 8(4) , 391  400 (1992). , Colloquium on Differential Equations and Applications, August 21  24 , 1991, BudapestHungary ; Ann. of Diff. Eqs. , 8(4) , 391  400 (1992). , 1991

39  AbouElEla, A. M. A. and Sadek, A. I, A boundedness result for fourthorder nonlinear differential equations., Ann. of Diff. Eqs., 6(3), , 263  269, 1990

40  AbouElEla, A. M. A. and Sadek, A. I., A stability result for the solutions of a certain system of fourthorder differential equations., EQUADIFF 7 Prague, August 21  25 , 1989
Ann. of Diff. Eqs. , 6(2), 131  141 (1990). , April, 1990

41  AbouElEla, A. M. A. and Sadek, A. I., On complete stability of the solutions of nonlinear differential equations of the fifthorder.
, Proc. of Assiut First Intern. Conf., Part v , 15  25 , 1990

42  AbouElEla, A. M. A. and Sadek, A. I., A boundedness result for fourthorder vector differential equations,, Proc. of Assiut First Intern. Conf. ,, Part v , 27  36 , 1990

43  AbouElEla, A. M. A. and Sadek, A. I. , A stability result for certain fourthorder differential equations., Tenth Conference on Differential Equations, 5  8 July 1988, Dundee(U.K.) ; Ann. of Diff. Eqs. , 6(1), 1  9 (1990)., 1988

Supervisions
: 
1 Ali Tony Saleh, Ecophysiological Studies On Some Hydrophytes In Assiut Province.
, Ph. D., 25 May 1997 Supervisors : Ahmed Mustafa Hamad, Mohamed Abou El Ela Ahmed

2 Rasha Osma Ahmed Taie, Some Qualitive Properties of Solutions for Certain Functional Differential Equations, M. Sc, 28 March 2011 Supervisors : Ahmed Mohammed Ahmed Abou ElEla, AbdelRahiem Ibraheim Sadek

3 Ayman Mohamed Mahmoud Abdul Rahman, QUAL0IT0AT0IVE STUDY FOR CERTIAN NONLINEAR DELAY DIFFRENTAIAL EQUATIONS OF HIGHER order, M. Sc, 26 April 2009 Supervisors : Ahmed Mohammed Ahmed AbouElEla, AbdulRahim Ibrahim Sadek

4 Eyman Sayed Farghaly , SOME QUALITTIVE PROPERTIES OF SOLUTIONS FOR CERTAIN NONLINEAR ORDINARY DIFFERENTIAL EQUATIONS, M. Sc, 26 April 2009 Supervisors : Ahmed Mohammed Ahmed Aboualala,Abdul Rahim Ibrahim Sadek

5 Ayman Mohamed Mahamed AbdelRahamen, Some Qualitative Properties of Solutions for Chrtain Delay Differntial Equations of Higherorder, D. Sc., 21 April 2012 Supervisors : Ahmed Mohamed Ahmed Abo ElAlla, AbdelRahem Ibrahem Sadeg

6 sfvhsfhhgf, ghdfjkgdfhgjkdh fjkghdfjkg, M. Sc, 5 May 2015 Supervisors : gdfighdifghgbdkj
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7 Abd El Raheem Sadeq, Some Properties of the Solutions of Certain NonLinear Differential Equations , M. Sc, 24 April 1988

8 Rasha Osman Ahmed Taie, Qualitative Study of Solutions for Certain Functional Differential Equations, Ph. D., 22 June 2016

Number of courses0 course 
