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View Resource Eigenvalue estimates of the Dirac operator depending on the Ricci tensor

This electronic pre-print comes from researchers at the Institute of Mathematics at The Technical University, Berlin. The paper, which is available in .ps gzipped format, demonstrates a new lower bound for the first eigenvalue of the Dirac operator on a compact Riemannian spin manifold by refined Weitzenbock techniques. It is used for manifolds with harmonic curvature tensor and depends on the...
View Resource A Spectral Bundle Method for Semidefinite Programming

This article is available online from the Society for Industrial and Applied Mathematics's Journal on Optimization (Volume 10, Number 3). It covers minimization of the maximum eigenvalue of an affine matrix function (real and symmetric) for application to large-scale problems.