880 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Saudi Center for Theoretical PhysicsSA54 papers
- Chouaib Doukkali UniversityMA33 papers
- King Abdullah University of Science and TechnologySA29 papers
- Massachusetts Institute of TechnologyUS17 papers
- Georgia Institute of TechnologyUS16 papers
- King Faisal UniversitySA12 papers
- Shura CouncilSA11 papers
- National University of SingaporeSG9 papers
- Northeastern UniversityUS9 papers
- Academy of Sciences Republic of UzbekistanUZ7 papers
- National University of Sciences and TechnologyPK7 papers
- Quaid-i-Azam UniversityPK7 papers
22 papers · 1 filter
Convergence and superconvergence analyses of HDG methods for time fractional diffusion problems
Kassem Mustapha, Maher Nour, Bernardo Cockburn
We study the hybridizable discontinuous Galerkin (HDG) method for the spatial discretization of time fractional diffusion models with Caputo derivative of order . For each t…
Electrostatic and Magnetic Fields in Bilayer Graphene
Ahmed Jellal, Ilham Redouani, Hocine Bahlouli
We compute the transmission probability through rectangular potential barriers and p-n junctions in the presence of a magnetic and electric fields in bilayer graphene taking into a…
A complete graphical calculus for Spekkens' toy bit theory
Miriam Backens, Ali Nabi Duman
While quantum theory cannot be described by a local hidden variable model, it is nevertheless possible to construct such models that exhibit features commonly associated with quant…
Efficient Coordinated Recovery of Sparse Channels in Massive MIMO
Mudassir Masood, Laila H. Afify, Tareq Y. Al-Naffouri
This paper addresses the problem of estimating sparse channels in massive MIMO-OFDM systems. Most wireless channels are sparse in nature with large delay spread. In addition, these…
A hybridizable discontinuous Galerkin method for fractional diffusion problems
Bernardo Cockburn, Kassem Mustapha
We study the use of the hybridizable discontinuous Galerkin (HDG) method for numerically solving fractional diffusion equations of order with . For exact time-marching…
Time-stepping discontinuous Galerkin methods for fractional diffusion problems
Kassem Mustapha
Time-stepping -versions discontinuous Galerkin (DG) methods for the numerical solution of fractional subdiffusion problems of order with will be proposed and anal…
Higher order self-adjoint operators with polynomial coefficients
H. Azad, A. Laradji, M. T. Mustafa
Algebraic and analytic aspects of self-adjoint operators of order four or more with polynomial coefficients are investigated. As a consequence, a systematic way of constructing suc…
A discontinuous Petrov-Galerkin method for time-fractional diffusion equations
Kassem Mustapha, Basheer Abdallah, Khaled Furati
We propose and analyze a time-stepping discontinuous Petrov-Galerkin method combined with the continuous conforming finite element method in space for the numerical solution of tim…
Finding paths through narrow and wide trees
Stephen Binns, Bjørn Kjos-Hanssen
We consider two axioms of second-order arithmetic. These axioms assert, in two different ways, that infinite but narrow binary trees always have infinite paths. We show that both a…
Hilfer fractional advection-diffusion equations with power-law initial condition; a Numerical study using variational iteration method
Iftikhar Ali, Nadeem Malik
We propose a Hilfer advection-diffusion equation of order and type , and find the power series solution by using variational iteration method. Power series sol…
On V-Semirings and Semirings all of whose Cyclic Semimodules are Injective
J. Y. Abuhlail, S. N. Il'in, Y. Katsov +1
In this paper, we introduce and study V- and CI-semirings---semirings all of whose simple and cyclic, respectively, semimodules are injective. We describe V-semirings for some clas…
Factorization of Dirac Equation and Graphene Quantum Dot
Youness Zahidi, Ahmed Jellal, Hocine Bahlouli +1
We consider a quantum dot described by a cylindrically symmetric 2D Dirac equation. The potentials representing the quantum dot are taken to be of different types of potential conf…
Time-stepping error bounds for fractional diffusion problems with non-smooth initial data
William McLean, Kassem Mustapha
We apply the piecewise constant, discontinuous Galerkin method to discretize a fractional diffusion equation with respect to time. Using Laplace transform techniques, we show that…
Turbulent Particle Pair Diffusion, Locality Versus Non-locality: Numerical Simulations
Nadeem A. Malik
Particle pair (relative) diffusion in a field of homogeneous turbulence with generalised power-law energy spectra, for and with $k_η…
In Order Packet Delivery in Instantly Decodable Network Coded Systems over Wireless Broadcast
Mohammad S. Karim, Parastoo Sadeghi, Neda Aboutorab +1
In this paper, we study in-order packet delivery in instantly decodable network coded systems for wireless broadcast networks. We are interested in applications, in which the succe…
Strong-randomness phenomena in quantum Ashkin-Teller models
Hatem Barghathi, Fawaz Hrahsheh, José A. Hoyos +2
The -color quantum Ashkin-Teller spin chain is a prototypical model for the study of strong-randomness phenomena at first-order and continuous quantum phase transitions. In this…
Coupled solutions for a bivariate weakly nonexpansive operator by iterations
V. Berinde, A. R. Khan, M. Pacurar
We prove weak and strong convergence theorems for a double Krasnoselskij type iterative method to approximate coupled solutions of a bivariate nonexpansive operator F : C x C --> C…
Minimal matrix representations of five-dimensional Lie algebras
Ryad Ghanam, G. Thompson
We obtain minimal dimension matrix representations for each indecomposable five-dimensional Lie algebra over and justify in each case that they are minimal. In each case a mat…
Automatic Reference Models Development: A Framework
Mojeeb Al-Rhman Al-Khiaty, Moataz Ahmed
Software reuse allows the software industry to simultaneously reduce development cost and improve product quality. Reuse of early-stage artifacts has been acknowledged to be more b…
Stabilized silicene within bilayer graphene: A proposal based on molecular dynamics and density-functional tight-binding calculations
G. R. Berdiyorov, M. Neek-Amal, F. M. Peeters +1
Free standing silicene is predicted to display comparable electronic properties as graphene. However, the yet synthesized silicene-like structures have been only realized on differ…
Higher-dimensional study of extensions via torsors
Cristiana Bertolin, Ahmet Emin Tatar
Let S be a site. First we define the 3-category of torsors under a Picard S-2-stack and we compute its homotopy groups. Using calculus of fractions we define also a pure algebraic…
Completion Time Reduction in Instantly Decodable Network Coding Through Decoding Delay Control
Ahmed Douik, Sameh Sorour, Mohamed-Slim Alouini +1
For several years, the completion time and decoding delay problems in Instantly Decodable Network Coding (IDNC) were considered separately and were thought to completely act agains…