Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Five-Full-Block Structured Singular Values of Real Matrices Equal Their Upper Bounds

Troeng, Olof LU (2021) In IEEE Control Systems Letters 5(2). p.583-586
Abstract
We show that the structured singular value of a real matrix with respect to five full complex uncertainty blocks equals its convex upper bound. This is done by formulating the equality conditions as a feasibility SDP and invoking a result on the existence of a low-rank solution. A counterexample is given for the case of six uncertainty blocks. Known results are also revisited using the proposed approach.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
IEEE Control Systems Letters
volume
5
issue
2
pages
4 pages
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:85088318615
ISSN
2475-1456
DOI
10.1109/LCSYS.2020.3004297
project
Scalable Control of Interconnected Systems
language
English
LU publication?
yes
id
b161e821-59a9-42fe-9bf6-5ecef4b3751f
alternative location
https://arxiv.org/abs/2007.05222
date added to LUP
2020-07-16 12:45:47
date last changed
2022-05-04 19:01:55
@article{b161e821-59a9-42fe-9bf6-5ecef4b3751f,
  abstract     = {{We show that the structured singular value of a real matrix with respect to five full complex uncertainty blocks equals its convex upper bound. This is done by formulating the equality conditions as a feasibility SDP and invoking a result on the existence of a low-rank solution. A counterexample is given for the case of six uncertainty blocks. Known results are also revisited using the proposed approach.}},
  author       = {{Troeng, Olof}},
  issn         = {{2475-1456}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{583--586}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  series       = {{IEEE Control Systems Letters}},
  title        = {{Five-Full-Block Structured Singular Values of Real Matrices Equal Their Upper Bounds}},
  url          = {{http://dx.doi.org/10.1109/LCSYS.2020.3004297}},
  doi          = {{10.1109/LCSYS.2020.3004297}},
  volume       = {{5}},
  year         = {{2021}},
}