Note on best possible bounds for determinants of matrices close to the identity matrix

Richard P. Brent*, Judy Anne H. Osborn, Warren D. Smith

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    14 Citations (Scopus)

    Abstract

    We give upper and lower bounds on the determinant of a small perturbation of the identity matrix. The lower bounds are best possible, and in most cases they are stronger than well-known bounds due to Ostrowski and other authors. The upper bounds are best possible if a skew-Hadamard matrix of the same order exists.

    Original languageEnglish
    Pages (from-to)21-26
    Number of pages6
    JournalLinear Algebra and Its Applications
    Volume466
    DOIs
    Publication statusPublished - 1 Feb 2015

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