An Iterative Method for Solving Complex-Symmetric Systems Arising in Electrical Power Modeling

Autor:	Victoria E. Howle, Stephen A. Vavasis
Rok vydání:	2005
Předmět:	Numerical linear algebra Preconditioner Iterative method Numerical analysis Linear system Complex system computer.software_genre law.invention Parallel processing (DSP implementation) law Electrical network computer Algorithm Analysis Mathematics
Zdroj:	SIAM Journal on Matrix Analysis and Applications. 26:1150-1178
ISSN:	1095-7162 0895-4798
DOI:	10.1137/s0895479800370871
Popis:	We propose an iterative method for solving a complex-symmetric linear system arising in electric power networks. Our method extends Gremban, Miller, and Zagha's [in Proceedings of the International Parallel Processing Symposium, IEEE Computer Society, Los Alamitos, CA, 1995] support-tree preconditioner to handle complex weights and vastly different admittances. Our underlying iteration is a modification to transpose-free QMR to enhance accuracy. Computational results are described.
Databáze:	OpenAIRE
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