EPSSUBSPACE#
EPSSUBSPACE = “subspace” - The simple subspace iteration method.
Notes#
This solver is very basic and is not recommended in general, since it will not be competitive with respect to other solvers.
The implemented method is subspace iteration with Rayleigh-Ritz projection and locking, based on the SRRIT code [Bai and Stewart, 1997].
References#
[Bai97]
Z. Bai and G. W. Stewart. Algorithm 776: SRRIT: a Fortran subroutine to calculate the dominant invariant subspace of a nonsymmetric matrix. ACM Trans. Math. Software, 23(4):494–513, 1997. doi:10.1145/279232.279234.
See Also#
Level#
beginner
Location#
src/eps/impls/subspace/subspace.c
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