摘要
In this paper, we consider preconditioners for generalized saddle point systems with a nonsymmetric coefficient matrix. A constraint preconditioner for this systems is constructed, and some spectral properties of the preconditioned matrix are given. Our results extend the corresponding ones in [3] and [4].
In this paper, we consider preconditioners for generalized saddle point systems with a nonsymmetric coefficient matrix. A constraint preconditioner for this systems is constructed, and some spectral properties of the preconditioned matrix are given. Our results extend the corresponding ones in [3] and [4].
基金
Supported by the Natural Science Foundation of Guangdong Province (06025061, 91510224000002)
the National Natural Science Foundation of China (10971075, 10671077)
the State Key Laboratory of Scientific and Engineering Computing
