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08/03/2022
Scalable Computational Algorithms for Geo-spatial Covid-19 Spread in High Performance Computing
A nonlinear partial differential equation (PDE) based compartmental mode...
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01/06/2022
Efficient Algebraic Two-Level Schwarz Preconditioner For Sparse Matrices
Domain decomposition methods are among the most efficient for solving sp...
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09/13/2021
A Robust Algebraic Multilevel Domain Decomposition Preconditioner For Sparse Symmetric Positive Definite Matrices
Domain decomposition (DD) methods are widely used as preconditioner tech...
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07/19/2021
A Robust Algebraic Domain Decomposition Preconditioner for Sparse Normal Equations
Solving the normal equations corresponding to large sparse linear least-...
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03/31/2021
Inexact subdomain solves using deflated GMRES for Helmholtz problems
We examine the use of a two-level deflation preconditioner combined with...
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03/10/2021
Several ways to achieve robustness when solving wave propagation problems
Wave propagation problems are notoriously difficult to solve. Time-harmo...
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12/04/2020
A comparison of coarse spaces for Helmholtz problems in the high frequency regime
Solving time-harmonic wave propagation problems in the frequency domain ...
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04/14/2020