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Numerical Algorithms for Identification of Convection Coefficient and Source in a Magnetohydrodynamics Flow

open access: yesAlgorithms
We consider three integral observations inverse problems (IP1, IP2, IP3) for reconstruction of a time-dependent convection coefficient and a source in magnetohydrodynamics (MHD) model.
Juri D. Kandilarov, Lubin G. Vulkov
doaj   +3 more sources

Numerical algorithms for high-performance computational science [PDF]

open access: yesPhilosophical Transactions Series A, Mathematical, Physical, and Engineering Sciences, 2020
Nicholas Higham   +2 more
exaly   +2 more sources

Performance impact of precision reduction in sparse linear systems solvers [PDF]

open access: yesPeerJ Computer Science, 2022
It is well established that reduced precision arithmetic can be exploited to accelerate the solution of dense linear systems. Typical examples are mixed precision algorithms that reduce the execution time and the energy consumption of parallel solvers ...
Mawussi Zounon   +3 more
doaj   +2 more sources

Overset Grid Assembler and Flow Solver with Adaptive Spatial Load Balancing

open access: yesApplied Sciences, 2021
An overset mesh approach is useful for unsteady flow problems which involve components moving relative to each other. Since the generation of a single mesh around all components is prone to mesh stretching due to the relative motion of bodies, using the ...
Orxan Shibliyev, Ibrahim Sezai
doaj   +1 more source

A Derivative-Free MZPRP Projection Method for Convex Constrained Nonlinear Equations and Its Application in Compressive Sensing

open access: yesMathematics, 2022
Nonlinear systems of equations are widely used in science and engineering and, therefore, exploring efficient ways to solve them is paramount. In this paper, a new derivative-free approach for solving a nonlinear system of equations with convex ...
Ibrahim Mohammed Sulaiman   +4 more
doaj   +1 more source

A Novel Optical-Based Methodology for Improving Nonlinear Fourier Transform

open access: yesMathematics, 2022
The increasing demand for bandwidth and long-haul transmission has led to new methods of signal processing and transmission in optical fiber communication systems. The nonlinear Fourier transform is one of the most recent methods proposed, and is able to
Julian Hoxha   +4 more
doaj   +1 more source

Identifying the challenges of code/theory translation: report from the Code/Theory 2017 workshop [PDF]

open access: yesResearch Ideas and Outcomes, 2017
The Code/Theory workshop explored the process of translating between theory and code, from the perspective of those who do this work on a day to day basis.
Caroline Jay   +15 more
doaj   +2 more sources

Cubic hat-functions approximation for linear and nonlinear fractional integral-differential equations with weakly singular kernels [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2023
In the current study, a new numerical algorithm is presented to solve a class of nonlinear fractional integral-differential equations with weakly singular kernels. Cubic hat functions (CHFs) and their properties are introduced for the first time.
H. Ebrahimi, J. Biazar
doaj   +1 more source

Numerical Algorithms on the Affine Grassmannian [PDF]

open access: yesSIAM Journal on Matrix Analysis and Applications, 2019
18 pages, 3 ...
Lek-Heng Lim, Ken Sze-Wai Wong, Ke Ye
openaire   +4 more sources

NUROA: A numerical roadmap algorithm [PDF]

open access: yes53rd IEEE Conference on Decision and Control, 2014
Motion planning has been studied for nearly four decades now. Complete, combinatorial motion planning approaches are theoretically well-rooted with completeness guarantees but they are hard to implement. Sampling-based and heuristic methods are easy to implement and quite simple to customize but they lack completeness guarantees.
Reza Iraji, Hamidreza Chitsaz
openaire   +3 more sources

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