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Alexander Kovacec
kovacec@mat.uc.pt
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Research Area
Interests in: Systems of polynomial equations, Polynomial Inequalities, Real Algebra, Matrix Theory,
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Institution
University of Coimbra
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PhD
Institution: University of Vienna, Austria
Year: 1980
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Main research publications
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Young type inequalities and their Matrix Analogues (with Horst Alzer and Carlos Martins da Fonseca)
, Linear and Multilinear Algebra (2014)
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A bound for the largest eigenvalue of a symmetric nonnegative matrix with zero diagonal (with Jorma K. Merikoski)
, The Natália Bebiano Birthday volume: Textos de Matemática, Volume 44 , DMUC (C. Fonseca, S. Furtado, A. Kovacec, C. K. Li, editors), 2013
ISBN: 9789728564483
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A note on extrema of linear combinations of elementary symmetric functions (with Salma Kuhlmann, Cordian Riener)
, Linear and Multilinear Algebra 60 (2012)
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Positive semidefinite diagonal minus tail forms are sums of squares (with Carla Fidalgo)
, Mathematische Zeitschrift 269 (2011)
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The Hankel pencil conjecture (with Maria Celeste Gouveia)
, Linear Algebra Appl. 431 (2009)
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PhD Students
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Carla Florêncio Fidalgo Sums of Squares of Polynomials with emphasis on Diagonal minus Tail Forms
2010
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Nuno Rodrigues co-supervision with Ana Cristina Almeida, ongoing
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Adittional information
Member of Projecto Delfos (school for young mathematicians/problem solving)
Reviewer of Zentralblatt fuer Mathematik (since~1992;~80reviews)
Spends also considerable energies for refereeing of articles.
