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An implicit \(Q\) theorem for Hessenberg-like matrices - MaRDI portal

An implicit \(Q\) theorem for Hessenberg-like matrices (Q2504852)

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An implicit \(Q\) theorem for Hessenberg-like matrices
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    An implicit \(Q\) theorem for Hessenberg-like matrices (English)
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    28 September 2006
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    The authors formulate and prove an implicit \(Q\) theorem for the class of Hessenberg-like matrices. They introduce the notion of strongly unreduced Hessenberg-like matrices an also a method for transformation matrices via orthogonal transformations to this form is proposed. As the theorem is valid for Hessenberg--like matrices it is also valid for symmetric semiseparable matrices.
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    Inverse of Hessenberg matrices
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    semiseparable matrices
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    implicit \(Q\) theorem
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    Hessenberg-like matrices
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