Department of Mathematics 
Abed Elhashash


Ph.D.
 2008  Mathematics, Temple University  Philadelphia, PA, USA.
M.A.  2004  Mathematics, Temple University 
Philadelphia, PA, USA.
B.A.  1998  Mathematics, The American University of
Beirut  Beirut, Lebanon.
My
speciality is matrix theory and my research interests
include: Generalizations of Nonnegative Matrices, PerronFrobenius
Theory Generalizations and Extensions to Cones in Hilbert and Banach Spaces, Generalizations of MMatrices, and ODE's on submanifolds of the Euclidean space.
Research Papers:
Abed
Elhashash and Daniel B. Szyld,
Matrix Functions Preserving Sets
of Generalized Nonnegative Matrices, Electronic Journal of Linear
Algebra, vol. 20 (2010) pp. 673690.
A.
Berman, M. Catral, L. M. Dealba,
A. Elhashash, F. J. Hall, L. Hogben, IJ Kim, D. D. Olesky, P. Tarazaga, M. J. Tsatsomeros, and P. Van Den Driessche,
Sign Patterns that Allow
Eventual Positivity, Electronic
Journal of Linear Algebra, vol. 119 (2010) pp. 108120.
Abed
Elhashash, Uriel G. Rothblum,
and Daniel B. Szyld, Paths of matrices with the strong PerronFrobenius property converging to a given matrix with
the PerronFrobenius property, Electronic Journal of Linear
Algebra, vol. 19 (2009) pp. 9097.
Abed
Elhashash and Daniel B. Szyld, Two
characterizations of matrices with the PerronFrobenius
property, Numerical
Linear Algebra with Applications, vol. 16 (2009) pp. 863869.
Abed
Elhashash, Existence,
Uniqueness, and Bearing Computation for the ConstantBearing Navigational Path
on an Ellipsoid of Revolution, Journal
of Geometry and Symmetry in Physics, vol. 13 (2009) pp. 7588.
Abed
Elhashash and Daniel B. Szyld, On general
matrices having the PerronFrobenius property,
Electronic Journal of
Linear Algebra, vol. 17 (2008) pp. 389413.
Abed
Elhashash and Daniel B. Szyld, Generalizations of Mmatrices
which may not have a nonnegative inverse, Linear Algebra and its
Applications vol. 429 (2008), pp. 24352450.
Scientific Societies.
American Mathematical Society (AMS).
International Linear Algebra
Society (ILAS).
Society of Industrial and Applied Mathematics
(SIAM).
Mathematics
Colloquia at Drexel.
Mathematics at Temple
University.
Go to the Department of
Mathematics Home Page
Last
updated: 22 February 2011