PT EN

Spectral Inequalities

Program

Eigenvalues of self-adjoint compact operators in Hilbert spaces. S-Numbers of compact self-adjoint operators. Integer h of factors matrices and modules. Extremal characterizations and properties of eigenvalue approximations, s-numbers and invariant factors. Inequalities for eigenvalues of sums and s-numbers of products. Divisibility relations for invariant factors of matrix products, and module extensions and quotients.

Research and Events

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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