Computing the lowest eigenvalues of the Fermion matrix by subspace iterations

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Computing the lowest eigenvalues of the Fermion matrix by subspace iterations

provides the smallest eigenvalue, together with the corresponding eigenvector. The minimum of a functional can be found iteratively by the method of conjugate gradients (CG)[1], its application to the special case of the Ritz functional has been worked out by Geradin[2] and Fried[3]. If a small number of lowest eigenvalues is required instead, q(x) may be minimised repeatedly, restricting x to ...

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ژورنال

عنوان ژورنال: Nuclear Physics B - Proceedings Supplements

سال: 1997

ISSN: 0920-5632

DOI: 10.1016/s0920-5632(96)00835-3