2002
DOI: 10.3166/ejc.8.275-298
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Positivity and Linear Matrix Inequalities

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Cited by 27 publications
(16 citation statements)
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“…Actually, the strong link between SOS formulation and S-procedure was well highlighted in de Oliveira (2005). In the same fashion, 1-D KYP lemma can be seen as the equivalence between nonnegativity of a univariate polynomial matrix (over a curve ∂D) and an LMI corresponding to the existence of a SOS-formulation of this matrix (Genin et al 2002(Genin et al , 2003. The expression in the condition (i) of Theorem 1 involves an n-variate polynomial matrix (with variables in a specified region).…”
Section: Discussion About Perspectivesmentioning
confidence: 97%
“…Actually, the strong link between SOS formulation and S-procedure was well highlighted in de Oliveira (2005). In the same fashion, 1-D KYP lemma can be seen as the equivalence between nonnegativity of a univariate polynomial matrix (over a curve ∂D) and an LMI corresponding to the existence of a SOS-formulation of this matrix (Genin et al 2002(Genin et al , 2003. The expression in the condition (i) of Theorem 1 involves an n-variate polynomial matrix (with variables in a specified region).…”
Section: Discussion About Perspectivesmentioning
confidence: 97%
“…Generally speaking, it is believed that convex LMI optimization problems arising from properties of positive polynomials can be solved more efficiently than general LMI problems, see the recent results and discussions in [Nesterov, 2000, Genin, 2002 and also [Alkire, 2001]. Numerical conditionning improvement and the use of alternative polynomial bases such as Chebyshev polynomials are however still subjects of further investigation.…”
Section: Resultsmentioning
confidence: 99%
“…The advantage of formulating the sufficient condition of stability for a polynomial as an LMI arising from positivity conditions on polynomials is that these convex optimization problems have a special structure (Toeplitz structure for discrete-time polynomials, or Hankel structure for continuous-time polynomials) which may be exploited to design efficient algorithms, see [Nesterov, 2000, Genin, 2002 or [Alkire, 2001]. Numerical properties of these algorithms must be however studied in further detail, since it is known for example that positive definite Hankel matrices are exponentially ill-conditioned.…”
Section: Lemma 4 Primal Lmi (3) Is Feasible If and Only If Dual Lmi (mentioning
confidence: 99%
“…Of course, direct applications of Youla's Theorem in control theory are well-known and are some the earliest of such applications. The paper of Genin et al [12], for instance, shows how SD-representability of polynomial matrix pencils can be used to design filters. Here we sketch a few other applications.…”
Section: Further Applicationsmentioning
confidence: 99%