14 citations · 40 across the 18 of their papers we have counts for
18 papers
Bayesian Joint Estimation of the Hurst Parameter and Volatility with Applications to Fractional Option Pricing
Hana H. Sagor, Edward L. Boone, Ryad A. Ghanam
Fractional Brownian motion has been widely used in financial modeling to capture long-range dependence and persistent behavior observed in asset dynamics. In the fractional Black--…
Nilpotent Lie algebras of vector fields in three variables
Hassan Azad, Indranil Biswas, Ryad Ghanam
We give a complete constructive description of all finite dimensional nilpotent Lie algebras of smooth vector fields in three variables, including intransitive algebras. The descri…
Linear Models, Variable Selection, Artificial Intelligence
By Riyadh Alrawkan, Edward Boone, Ryad Ghanam +1
Variable selection in linear regression models has been a problem since hypothesis testing began. Which variables to include or exclude from a model is not an easy task. Techniques…
Essential Workers at Risk: An Agent-Based Model (SAFE-ABM) with Bayesian Uncertainty Quantification
Elizabeth B. Amona, Indranil Sahoo, Ya Su +3
Essential workers face elevated infection risks due to their critical roles during pandemics, and protecting them remains a significant challenge for public health planning. This s…
Studying Disease Reinfection Rates, Vaccine Efficacy and the Timing of Vaccine Rollout in the context of Infectious Diseases
Elizabeth Amona, Indranil Sahoo, Edward Boone +1
Qatar has undergone distinct waves of COVID-19 infections, compounded by the emergence of variants, posing additional complexities. This research uniquely delves into the varied ef…
Incorporating Interventions to an Extended SEIRD Model with Vaccination: Application to COVID-19 in Qatar
Elizabeth B Amona, Ryad A Ghanam, Edward L Boone +2
The Covid-19 outbreak of 2020 has required many governments to develop and adopt mathematical-statistical models of the pandemic for policy and planning purposes. To this end, this…
Algorithms for Simultaneous Block Triangularization and Block Diagonalization of Sets of Matrices
Ahmad Y. Al-Dweik, Ryad Ghanam, Gerard Thompson +1
In a recent paper, a new method was proposed to find the common invariant subspaces of a set of matrices. This paper invstigates the more general problem of putting a set of matric…
A novel procedure for constructing invariant subspaces of a set of matrices
Ahmad Y. Al-Dweik, Ryad Ghanam, Gerard Thompson +1
A problem that is frequently encountered in a variety of mathematical contexts, is to find the common invariant subspaces of a single, or set of matrices. A new method is proposed…
Monitoring SEIRD model parameters using MEWMA for the COVID-19 pandemic with application to the State of Qatar
Edward L. Boone, Abdel-Salam G. Abdel-Salam, Indranil Sahoo +3
During the current COVID-19 pandemic, decision makers are tasked with implementing and evaluating strategies for both treatment and disease prevention. In order to make effective d…
Lie symmetries of the canonical connection: codimension one abelian nilradical case
Hassan Almusawa, Ryad Ghanam, G. Thompson
This paper studies the canonical symmetric connection associated to any Lie group . The salient properties of are stated and proved. The Lie symmetries of the…
Optimal Sampling Regimes for Estimating Population Dynamics
Rebecca E. Atanga, Edward L. Boone, Ryad A. Ghanam +1
Ecologists are interested in modeling the population growth of species in various ecosystems. Studying population dynamics can assist environmental managers in making better decisi…
SEIRD Model for Qatar Covid-19 Outbreak: A Case Study
Ryad Ghanam, Edward L. Boone, Abdel-Salam G. Abdel-Salam
The Covid-19 outbreak of 2020 has required many governments to develop mathematical-statistical models of the outbreak for policy and planning purposes. This work provides a tutori…
A Bayesian Estimation for the Fractional Order of the Differential Equation that Models Transport in Unconventional Hydrocarbon Reservoirs
Joshua Whitlinger, Edward L Boone, Ryad Ghanam
The extraction of natural gas from the earth has been shown to be governed by differential equations concerning flow through a porous material. Recently, models such as fractional…
Minimal Representations of Lie Algebras With Non-Trivial Levi Decomposition
Ryad Ghanam, Manoj Lamichhane, Gerard Thompson
We obtain minimal dimension matrix representations for each of the Lie algebras of dimension five, six, seven, and eight obtained by Turkowski that have a non-trivial Levi decompos…
Symmetry group classification and optimal reduction of a class of damped Timoshenko beam system with a nonlinear rotational moment
S. M. Al-Omari, F. D. Zaman, A. Y. Al-Dweik +1
We consider a nonlinear Timoshenko system of partial differential equations (PDEs) with a frictional damping term in rotation angle. The nonlinearity is due to the arbitrary depend…
Embedding algorithms and applications to differential equations
Sajid Ali, Hassan Azad, Indranil Biswas +2
Algorithms for embedding certain types of nilpotent subalgebras in maximal subalgebras of the same type are developed, using methods of real algebraic groups. These algorithms are…
On computing joint invariants of vector fields
H. Azad, I. Biswas, R. Ghanam +1
A constructive version of the Frobenius integrability theorem -- that can be programmed effectively -- is given. This is used in computing invariants of groups of low ranks and rec…
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…