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07/31/2023
Multilevel well modeling in aggregation-based nonlinear multigrid for multiphase flow in porous media
A full approximation scheme (FAS) nonlinear multigrid solver for two-pha...
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09/20/2021
Network Clustering by Embedding of Attribute-augmented Graphs
In this paper we propose a new approach to detect clusters in undirected...
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09/15/2021
An Aggregation-based Nonlinear Multigrid Solver for Two-phase Flow and Transport in Porous Media
A nonlinear multigrid solver for two-phase flow and transport in a mixed...
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07/12/2021
Parallel Element-based Algebraic Multigrid for H(curl) and H(div) Problems Using the ParELAG Library
This paper presents the use of element-based algebraic multigrid (AMGe) ...
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07/28/2020
Multilevel Hierarchical Decomposition of Finite Element White Noise with Application to Multilevel Markov Chain Monte Carlo
In this work we develop a new hierarchical multilevel approach to genera...
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05/04/2020
Nonlinear multigrid based on local spectral coarsening for heterogeneous diffusion problems
This work develops a nonlinear multigrid method for diffusion problems d...
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03/09/2020
Multilevel spectral coarsening for graph Laplacian problems with application to reservoir simulation
We extend previously developed two-level coarsening procedures for graph...
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12/10/2019
A Condensed Constrained Nonconforming Mortar-based Approach for Preconditioning Finite Element Discretization Problems
This paper presents and studies an approach for constructing auxiliary s...
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11/13/2019
DNN Approximation of Nonlinear Finite Element Equations
We investigate the potential of applying (D)NN ((deep) neural networks) ...
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10/15/2019
Auxiliary Space Preconditioning of Finite Element Equations Using a Nonconforming Interior Penalty Reformulation and Static Condensation
We modify the well-known interior penalty finite element discretization ...
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07/09/2019
Improving Solve Time of aggregation-based adaptive AMG
This paper proposes improving the solve time of a bootstrap AMG designed...
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06/19/2019