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Publications |
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Fidalgo, Carla (2013). Formas semidefinidas positivas e somas de quadrados. Boletim da Sociedade Portuguesa de Matemática. Vol. Actas do Encontro Nacional da SPM, pp. 13-16.
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Fidalgo, Carla, KOVACEC, Alexander (2011). Positive semidefinite diagonal minus tail forms are sums of squares. Mathematische Zeitschrift. Vol. 269. 3-4, pp. 629-645.
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Fidalgo, Carla (2010). Gauss elimination without pivoting for positive semidefinite matrices and an application to sums of squares representations.
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Fidalgo, Carla, KOVACEC, Alexander (2009). Diagonal minus tail forms and Lasserre´s sufficient conditions for sums of squares. DMUC 09-09 Preprint.
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Fidalgo, Carla, KOVACEC, Alexander (2008). Positive semidefinite diagonal minus tail forms are sums of squares. DMUC 08-62 Preprint.
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Fidalgo, Carla (2007). Gauss Elimination without pivoting for positive semidefinite matrices and an application to sum of squares representations. DMUC 07-39 Preprint.
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