On Stability of Parametrized Families of Polynomials and Matrices

The Schur and Hurwitz stability problems for a parametric polynomial family as well as the Schur stability problem for a compact set of real matrix family are considered. It is established that the Schur stability of a family of real matrices 𝒜 is equivalent to the nonsingularity of the family {𝐴2−2...

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Main Authors: Handan Akyar, Taner Büyükköroğlu, Vakıf Dzhafarov
Format: Article
Language:English
Published: Hindawi Limited 2010-01-01
Series:Abstract and Applied Analysis
Online Access:http://dx.doi.org/10.1155/2010/687951
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spelling doaj-ccbb82914b244791862c7c60fafb161d2020-11-24T21:29:08ZengHindawi LimitedAbstract and Applied Analysis1085-33751687-04092010-01-01201010.1155/2010/687951687951On Stability of Parametrized Families of Polynomials and MatricesHandan Akyar0Taner Büyükköroğlu1Vakıf Dzhafarov2Department of Mathematics, Faculty of Science, Anadolu University, 26470 Eskisehir, TurkeyDepartment of Mathematics, Faculty of Science, Anadolu University, 26470 Eskisehir, TurkeyDepartment of Mathematics, Faculty of Science, Anadolu University, 26470 Eskisehir, TurkeyThe Schur and Hurwitz stability problems for a parametric polynomial family as well as the Schur stability problem for a compact set of real matrix family are considered. It is established that the Schur stability of a family of real matrices 𝒜 is equivalent to the nonsingularity of the family {𝐴2−2𝑡𝐴+𝐼∶𝐴∈𝒜,𝑡∈[−1,1]} if 𝒜 has at least one stable member. Based on the Bernstein expansion of a multivariable polynomial and extremal properties of a multilinear function, fast algorithms are suggested.http://dx.doi.org/10.1155/2010/687951
collection DOAJ
language English
format Article
sources DOAJ
author Handan Akyar
Taner Büyükköroğlu
Vakıf Dzhafarov
spellingShingle Handan Akyar
Taner Büyükköroğlu
Vakıf Dzhafarov
On Stability of Parametrized Families of Polynomials and Matrices
Abstract and Applied Analysis
author_facet Handan Akyar
Taner Büyükköroğlu
Vakıf Dzhafarov
author_sort Handan Akyar
title On Stability of Parametrized Families of Polynomials and Matrices
title_short On Stability of Parametrized Families of Polynomials and Matrices
title_full On Stability of Parametrized Families of Polynomials and Matrices
title_fullStr On Stability of Parametrized Families of Polynomials and Matrices
title_full_unstemmed On Stability of Parametrized Families of Polynomials and Matrices
title_sort on stability of parametrized families of polynomials and matrices
publisher Hindawi Limited
series Abstract and Applied Analysis
issn 1085-3375
1687-0409
publishDate 2010-01-01
description The Schur and Hurwitz stability problems for a parametric polynomial family as well as the Schur stability problem for a compact set of real matrix family are considered. It is established that the Schur stability of a family of real matrices 𝒜 is equivalent to the nonsingularity of the family {𝐴2−2𝑡𝐴+𝐼∶𝐴∈𝒜,𝑡∈[−1,1]} if 𝒜 has at least one stable member. Based on the Bernstein expansion of a multivariable polynomial and extremal properties of a multilinear function, fast algorithms are suggested.
url http://dx.doi.org/10.1155/2010/687951
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AT tanerbuyukkoroglu onstabilityofparametrizedfamiliesofpolynomialsandmatrices
AT vakıfdzhafarov onstabilityofparametrizedfamiliesofpolynomialsandmatrices
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