Perturbation bounds of tensor eigenvalue and singular value problems with even order. Issue 4 (2nd April 2016)

• Record Type: Journal Article
• Authors: Che, Maolin; Qi, Liqun; Wei, Yimin
• Is Part Of: Linear & multilinear algebra. Volume 64:Issue 4(2016)
• Page Start: 622
• Page End: 652
• Publication Date: 2016-04-02
• Subjects: algebraic simple -- mode-symmetry -- mode-symmetric embedding -- mode-k tensor polynomial eigenvalue -- tensor generalized eigenvalue -- tensor quadratic eigenvalue -- tensor generalized singular value -- nonsingular tensor; 15A18 -- 15A69 -- 65F15 -- 65F10; Algebras, Linear -- Periodicals; Multilinear algebra -- Periodicals; 512.505
• DOI: 10.1080/03081087.2015.1074153
• Languages: English
• ISSNs: 0308-1087

Abstract

Abstract : The main purpose of this paper is to investigate the perturbation bounds of the tensor eigenvalue and singular value problems with even order. We extend classical definitions from matrices to tensors, such as, -tensor and the tensor polynomial eigenvalue problem. We design a method for obtaining a mode-symmetric embedding from a general tensor. For a given tensor, if the tensor is mode-symmetric, then we derive perturbation bounds on an algebraic simple eigenvalue and Z-eigenvalue. Otherwise, based on symmetric or mode-symmetric embedding, perturbation bounds of an algebraic simple singular value are presented. For a given tensor tuple, if all tensors in this tuple are mode-symmetric, based on the definition of a -tensor, we estimate perturbation bounds of an algebraic simple polynomial eigenvalue. In particular, we focus on tensor generalized eigenvalue problems and tensor quadratic eigenvalue problems.