Structured tools for structured matrices

Mackey, D. Steven and Mackey, Niloufer and Tisseur, Françoise (2003) Structured tools for structured matrices. Electronic Journal of Linear Algebra, 10. pp. 106-145. ISSN 1081-3810

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Abstract

An extensive and unified collection of structure-preserving transformations is presented and organized for easy reference. The structures involved arise in the context of a non-degenerate bilinear or sesquilinear form on R^n or C^n. A variety of transformations belonging to the automorphism groups of these forms, that imitate the action of Givens rotations, Householder reflectors, and Gauss transformations are constructed. Transformations for performing structured scaling actions are also described. The matrix groups considered in this paper are the complex orthogonal, real, complex and conjugate symplectic, real perplectic, real and complex pseudo-orthogonal, and pseudo-unitary groups. In addition to deriving new transformations, this paper collects and unifies existing structure-preserving tools.

Item Type:	Article
Subjects:	MSC 2010, the AMS's Mathematics Subject Classification > 15 Linear and multilinear algebra; matrix theory MSC 2010, the AMS's Mathematics Subject Classification > 65 Numerical analysis
Depositing User:	Ms Lucy van Russelt
Date Deposited:	05 Dec 2007
Last Modified:	20 Oct 2017 14:12
URI:	https://eprints.maths.manchester.ac.uk/id/eprint/983

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