• António Leal Duarte

  • Research Area

    Matrix Theory

  • Institution

    University of Coimbra

  • PhD

    Institution: Univ de Coimbra
    Year: 1992

  • Main research publications

    • The change in eigenvalue multiplicity associated with perturbation of a diagonal entry (with C. R. Johnson and C. Saiago) , Linear and Multilinear Algebra 60 (2012)
    • Imbedding conditions for normal matrices (with J. F. Queiró) , Linear Algebra Appl. 430 (2009)
    • The structure of matrices with a maximum multiplicity eigenvalue (with C. R. Jonhson and C. Saiago) , Linear Algebra Appl. 429 (2008)
    • Multiplicity Lists for the Eigenvalues of Symmetric Matrices with a Given Graph (with C. R. Jonhson, Carlos Saiago) , in: Handbook of Linear Algebra (ISBN: 978-1-58488-51), pp. Chap 34 , Discrete Mathematics and its Applications , CRC Press, 2007
    • Converse to the Parter-Wiener Theorem: the case of non-trees (with C. R. Jonhson) , Discrete Math. 306 (2006)
  • PhD Students

    • Fernando José Bandeira Figueiredo José Monteiro da Rocha, mathematian and astronomer co-supervision with Prof. Artur Alves (Univ de Coimbra) e Prof. João Fernandes (Univ de Coimbra), 2011
    • Américo Lopes Bento Symmetric band matrices and Fiedler characterization 2006

Research and Events


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Defended Theses

  • Some aspects of descent theory and applications
      Rui Rodrigues de Abreu Fernandes Prezado (January 2024)
      Maria Manuel Clementino
      Fernando Lucatelli Nunes
  • Comparability between different systems: star-shaped and convex transform orders
      Beatriz Ferreira Santos (December 2023)
      Paulo Eduardo Oliveira
      Idir Arab
  • On Lax Idempotent Monads in Topology
      Carlos Miguel Alves Fitas (December 2023)
      Maria Manuel Clementino
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