Personal Data
Surname: Deif
Forenames: Assem Shawki
Nationality: Egyptian
Date of Birth: 1 October 1945
High School: College de la Sainte Famille (les peres Jesuites), Le Caire
Languages spoken: Arabic, English and French
Education and Degrees

B.Sc. Honours in Electrical Engineering, Cairo University, Egypt, 1969

B.Sc. Honours in Mathematics, University of London, England, 1971

Ph.D. in System Theory, University of Kent, England, 1975
Fellowships and Awards

Cairo University Junior Scholarship, 19641969

Philips International Institute Fellowship, 1971

Egypt’s State Prize in Mathematics, 1981

Egypt’s Legion d’Honneur of Arts and Science of First Degree, 1982

Alexander von Humboldt Stiftung, 1984
Academic Posts Held

Lecturer, Cairo University, 19751980

Associate Professor, Cairo University, 19801985

Visiting Associate Professor, University of California Berkeley, 1983

Visiting Associate Professor, Technische Hochschule Darmstadt, 1984

Professor, Cairo University, 1985to date

Visiting Professor, King Saud University, Saudi Arabia, 19881989

Visiting Professor, Qatar University, 19911992

Visiting Professor, King Fahd University of Petroleum and Minerals (UPM), March 1992

Visiting Professor, Kuwait University, 19921993
Administrative Posts Held

Head of the Mathematics Unit, Faculty of Engineering, Cairo University, 19851996.

Head of the Mathematics Unit at Misr University for Science and Technology, 19962000.

Head of the Mathematics Unit, Faculty of Engineering, Cairo University, 20002002.

Chairman of the department of Engineering Mathematics and Physics, Faculty of Engineering, Cairo University, from March 2002Now.
MembershipAcademic and Scientific Organizations

Society of Electrical Engineers (IEE) 19711975

Society of Electrical and Electronic Engineers (IEEE) 19711977

Society of Industrial and Applied Mathematics (SIAM) 19821991

American Mathematical Society 19912001

Egyptian Society of Operations Research 19751977

Higher Council of Mathematics and PhysicsEgyptian Academy of Science 19811983

Higher National Council of MathematicsEgyptian Academy of Science 19912000

Centre of technologyaids and elearning in education at the Egyptian ministry of education 2000Now.
Courses Taught

Calculus and Analytic Geometry

Theory of Functions of a Real Variable

Theory of Functions of a Complex Variable

Numerical Analysis and Computational Mathematics

Differential and Integral Equations

System Theory, Synthesis and Optimization
Research Subjects

Matrix Theory and Computational Mathematics

Perturbation Theory in Linear Systems

Error Analysis and Interval Mathematics

Systems Applications to SocioEconomics

Mathematical Modelling and Operations Research
Published Papers/Mathematics

A.S.Deif: Sensitivity Analysis from the State Equations by Pertubation Techniques, J. Appl. Math. Model, 5, 405408, 1981

A.S.Deif: The Proof of a New Matrix Theorem, Egypt’s Proc. Math. Phys. Soc., 51, 79, 1981

A.S.Deif: Normal Positive Definite Matrices, Matrix and Tensor Quarterly, 32, 109110, 1982

A.S.Deif: Nondiagonable Systems under Small Perturbations, J. Appl. Math. Phys.(ZAMP), 33, 282288, 1982

A.S.Deif: The Generalized Inverse of a Perturbed Singular Matrix, J. Appl. Math. Phys. (ZAMP), 34, 291300, 1983

A.S.Deif: Error Bounds for the Equation AX+XB=C, Matrix and Tensor Quarterly, 34, 6674, 1983

A.S.Deif and P.Hagedorn: Matrix Polynomials Subjected to Small Perturbations, J. Appl. Math. Mech. (ZAMM), 66, 403412, 1986

A.S.Deif: A Relative Backward Perturbation Theorem for the Eigenvalue Problem, Numerische Mathematik, 56, 625626, 1989

A.S.Deif: Realistic aPriori and aPosteriori Error Bounds for Computed Eigenvalues, IMA J. Numer. Analysis, 9, 323329, 1990

A.S.Deif: The Interval Eigenvalue Problem, J. Appl. Math. Mech. (ZAMM), 71, 6164, 1991

11.A.S.Deif: Singular Values of an Interval Matrix, Linear Algebra and its Appl., 151, 125133, 1991

N.Seif, S.Hashem, A.Deif: Bounding the Eigenvectors of a Symmetric Interval Matrix, J. Appl. Math. Mech. (ZAMM), 72, 233236, 1992

J.Rohn and A.Deif: On the Range of Eigenvalues of an Interval Matrix, Computing, 47, 373377, 1992

A.S.Deif and J.Rohn: On the Invariance of the Sign Pattern of Matrix Eigenvectors by Perturbation, Linear Algebra and its Appl., 196, 6370, 1994

N.Seif, S.Hussein, A.Deif: Interval Sylvester’s Equation, Computing, 52, 233244, 1994

16.A.S.Deif: Rigourous Perturbation Bounds for Eigenvalues and Eigenvectors of a Matrix, J. Comput. and Appl. Math., 57, 403412, 1995

17.A.Deif, N.Seif, S.Hussein: Sylvester’s Equation, Accuracy and Computational Stability, J.Comput. and Appl. Math., 61, 111, 1995

A.S.Deif: APriori and aPosteriori Bounds in Matrix Computations,
Invited Paper to the Encyclopaedia of Mathematics, edited by Prof. Dr. M. Hazewinkel, Supplement I, pp.15, Kluwer publishers, Dordrecht, The Netherlands, 1997. Available on a CD.

N.P.Seif, M.A.Hassanein, A.S.Deif: Inverse problem of the interval linear system of equations, Computing, 63, 185200, 1999
Published Papers/Engineering Applications

M.I.Sobhy and A.S.Deif: The StateSpace Approach to First Order Perturbations in Electrical Networks, Trans. IEEE Circuits and Systems, 22,776780, 1975

M.I.Sobhy and A.S.Deif: Applications of the Perturbation Matrix in Network Design Problems, Electronics Letters, 11, 294296, 1975

22.M.I.Sobhy and A.S.Deif: The Perturbation Matrix and its Applications in Network Design, International J. Electronics, 40, 257266, 1976

M.I.Sobhy and A.S.Deif: The State Matrix of Networks Containing Lossy Reactances, International J. Electronics, 47, 603608, 1979

A.S.Deif: A Linear Programming Model for an Optimum Admission Policy in Education, J. Appl. Math. Model., 4, 3944, 1980

A.S.Deif and S.Hussein: Network Design from the Characteristic Polynomial, J. Appl. Math. Model., 8, 351354, 1984
Papers in Conference Proceedings and invited talks

A.S.Deif: Optimal Planning in Education to Meet Social Demand and Manpower Requirements, Proc. Intern. Conf. Autom. Control IFAC) Ed:A.Ghoneim, Amer. University, Cairo, 1977

A.S.Deif: NonConservative Mechanical Systems Subjected to Small Variations in their Parameters, Proc. First Conf. on Mech. Design and Production, Ed:G.Shawki, Cairo University,1979

H.AlGindi and A.Deif: An Algorithm for Analysing Lumped and Distributed Systems, IMACS Europ. Simul. Meeting on DPSLSS, Ed:S.Tzafestas, Patras, Greece, 1979

A.S.Deif and F.Selim: The StateSpace Approach to First Order Perturbations in Distributed Systems , Proc. Europ. Conf. Circuit Theory and Design Ed:P.Dewilde and R.Boite, The Hague, Netherlands,1981

L.Zereick, R.Amer, A.Deif: Network Tuning via Mixed Integer Programming, IEEE International Symp. Systems (ISCAS) Ed:S.Mitra, NewPort Beach CA, USA, May, 1983

A.S.Deif and A.Hussein: Interval Analysis, a Tool for Controlling Accuracy
invited lecture to the dept. of mathematics conf., the school of science of Cairo univ. for the Commemoration of Prof. A.Ashour Birthday, 1984

A.S.Deif : Three chronic problems in numerical analysis, invited paper to the first. intern. Conf. in engineering mathematics and physics held at Cairo university in Dec.1990

A.S.Deif : Interval analysis, a tool in numerical computations,
an invited lecture in the department of mathematics, the university of Petroleum and Minerals, Dhahran, Saudi Arabia, March 1992

A.S.Deif : Accuracy and computational stability by interval analysis,
paper invited to the second intern. Conf. in engineering mathematics and physics held at Cairo university in Dec.1994

A.S.Deif : Misconceptions in teaching calculus,
paper invited to the second internal symposium in mathematics education organized by the ministry of education at Ibrahymia school, Cairo, Febr.2000
Refereed Technical Reports

A.S.Deif: The State Equations of Electrical Networks from a Lagragian Formulation, Bulletin of the Faculty of Engineering, Cairo University, 4, 285293, 1979

A.S.Deif: Perturbation of the Eigenvalues of NonDiagonalizable Matrices, Bulletin of the Faculty of Engineering, Cairo University, 2,133142,1980

A.S.Deif and A.Hussein: APosteriori Analysis for Iterative Systems, Bulletin of the Faculty of Engineering, Cairo University, 4, 1316, 1987

A.S.Deif and A.Hussein: Perturbation of the Eigenvalues of a Defective Matrix, Bulletin of the Faculty of Engineering, Cairo University, 2, 17, 1987
Books

A.S.Deif: Advanced Matrix Theory for Scientists and Engineers, Abacus Press London and Halsted Press division of JohnWiley and Sons, New York, 1982. A second edition appeared in 1991 by Gordon and Breach Science Publishers, London

A.S.Deif: Sensitivity Analysis in Linear Systems, SpringerVerlag, Berlin and Heidelberg, 1986

A.S.Deif: Differential and Integral Calculus, Dar AlMaaref, Cairo, 1996 in Arabic in its first edition. A third edition appeared lately and a CDRom is about to be produced. A brief description is found in: http://www.calculus.s5.com
Conference Active Participation

Member of the organizing Committee for the AMS Conference which was held in LyonFrance in September 1981

Chairman of the Session on ComputerAided Design in the IEEE International Symposium on Systems which took place in NewPort Beach California in May 1983
Citation

the International Biographical Center

the Marquis Who’s Who in the World

the Egyptian National Biographers.

Who’s Who in distance learning
Societies:
Dr. Deif is the owner and moderator of the Calculus_eg society on the web, focussing on Calculusrelated subjects. The site includes queries of students, links on related issues, exams, etc…The society was founded in Sept. 2000, see: http://groups.yahoo.com/search?query=calculus_eg&submit=Search
He also contributed to many other egroups societies.