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Extending a new two-grid waveform relaxation on a spatial finite element discretization
Abstract
In this work, a new two-grid method presented for the elliptic partial differential equations is generalized to the time-dependent linear parabolic partial differential equations. The new two-grid waveform relaxation method uses the numerical method of lines, replacing any spatial derivative by a discrete formula, obtained here by the finite element method. A convergence analysis in terms of the spectral radius of the corresponding two-grid waveform relaxation operator is also developed. Moreover, the efficiency of the presented method and its analysis are tested, applying the two-dimensional heat equation.
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BibTeX
@misc{mesforush2026extending,
title = {{Extending a new two-grid waveform relaxation on a spatial finite element discretization}},
author = {A. Mesforush and N. Habibi},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.27935},
eprint = {2609.27935},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.27935},
}
RIS
TY - UNPB
TI - Extending a new two-grid waveform relaxation on a spatial finite element discretization
AU - A. Mesforush
AU - N. Habibi
PY - 2026
DA - 2026/09/01
PB - arXiv
DO - 10.48550/arxiv.2609.27935
UR - https://arxiv.org/abs/2609.27935
AB - In this work, a new two-grid method presented for the elliptic partial differential equations is generalized to the time-dependent linear parabolic partial differential equations. The new two-grid waveform relaxation method uses the numerical method of lines, replacing any spatial derivative by a discrete formula, obtained here by the finite element method. A convergence analysis in terms of the spectral radius of the corresponding two-grid waveform relaxation operator is also developed. Moreover, the efficiency of the presented method and its analysis are tested, applying the two-dimensional heat equation.
ER -