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    Diagonal Riccati Stability and Positive Time-Delay Systems

    Mason, Oliver (2012) Diagonal Riccati Stability and Positive Time-Delay Systems. Systems and Control Letters, 61 (1). pp. 6-10. ISSN 0167-6911

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    We consider a class of algebraic Riccati equations arising in the study of positive linear time-delay systems. We show that this class admits diagonal positive denite solutions. This implies that exponentially stable positive linear time- delay systems possess Lyapunpov-Krasovskii functionals of a simple quadratic form. We also show that for this class of equations, the existence of positive- denite solutions is equivalent to a simple spectral condition on the coecient matrices.

    Item Type: Article
    Additional Information: Notice: this is the author’s version of a work that was accepted for publication in Systems and Control Letters. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Systems and Control Letters, [Vol.61, No.1, (2012)] DOI:
    Keywords: Riccati equations; positive time-delay systems; diagonal Lyapunov functions;
    Academic Unit: Faculty of Science and Engineering > Research Institutes > Hamilton Institute
    Item ID: 3751
    Depositing User: Oliver Mason
    Date Deposited: 13 Jun 2012 14:09
    Journal or Publication Title: Systems and Control Letters
    Publisher: Elsevier
    Refereed: Yes
    Use Licence: This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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