An improved block splitting preconditioner for complex symmetric indefinite linear systems
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DOI: 10.1007/s11075-017-0323-z
Abstract: In this paper, an improved block splitting preconditioner for a class of complex symmetric indefinite linear systems is proposed. By adopting two iteration parameters and the relaxation technique, the new preconditioner not only remains the… read more here.
Keywords: block; splitting preconditioner; improved block; block splitting ... See more keywords
Diagonal and circulant or skew-circulant splitting preconditioners for spatial fractional diffusion equations
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DOI: 10.1007/s40314-017-0570-6
Abstract: We propose three new preconditioners: diagonal and optimal-circulant splitting preconditioner, diagonal and skew-circulant splitting preconditioner, and diagonal and optimal-skew-circulant splitting preconditioner for solving the diagonal-plus-Toeplitz linear system discretized from the spatial fractional diffusion equations. Theoretical… read more here.
Keywords: diagonal circulant; splitting preconditioner; circulant; circulant splitting ... See more keywords