@Article{JCM-36-4,
author = {Xinhui, Shao and Li, Chen and Zhang, Tie and Li, Changjun},
title = {A Modified Preconditioner for Parameterized Inexact Uzawa Method for Indefinite Saddle Point Problems},
journal = {Journal of Computational Mathematics},
year = {2018},
volume = {36},
number = {4},
pages = {579--590},
abstract = {<p style="text-align: justify;">The preconditioner for parameterized inexact Uzawa methods has been used to solve
some indefinite saddle point problems. Firstly, we modify the preconditioner by making it
more generalized, then we use theoretical analyses to show that the iteration method converges
under certain conditions. Moreover, we discuss the optimal parameter and matrices
based on these conditions. Finally, we propose two improved methods. Numerical experiments
are provided to show the effectiveness of the modified preconditioner. All methods
have fantastic convergence rates by choosing the optimal parameter and matrices.</p>},
issn = {1991-7139},
doi = {https://doi.org/10.4208/jcm.1702-m2016-0665},
url = {https://global-sci.com/article/84484/a-modified-preconditioner-for-parameterized-inexact-uzawa-method-for-indefinite-saddle-point-problems}
}