Subspace-by-subspace preconditioners for structured linear systems

ePubs

The open archive for STFC research publications

Persistent URL	http://purl.org/net/epubs/work/29693
Record Status	Checked
Record Id	29693
Title	Subspace-by-subspace preconditioners for structured linear systems
Contributors	MJ Dayde, J Decamps, NIM Gould (CCLRC Rutherford Appleton Lab.)
Abstract	We consider the iterative solution of symmetric positive-definite linear systems whose coefficient matrix may be expressed as the outer-product of low-rank terms. We derive suitable preconditioners for such systems, and demonstrate their effectiveness on a number of test examples. We also consider combining these methods with existing techniques to cope with the commonly occurring case where the coefficient matrix is the linear sum of elements, some of which are of very low rank.
Organisation	CCLRC
Keywords
Funding Information
Related Research Object(s):
Licence Information:
Language	English (EN)

Type	Details	URI(s)	Local file(s)	Year
Report	RAL Technical Reports RAL-TR-1998-005. 1998.		raltr-1998005.pdf	1998