PT EN

Categories in Algebra and Topology

Program

Part I: Introduction to Category Theory:
Categories, functors and natural transformations. Isomorphism and equivalence of categories. Construction of new categories: subcategories, product of categories and dual category. Categorical duality principle. Limits and colimits. Functor categories. Representable functors. Yoneda Lemma and Yoneda embedding. Adjoints and limits. Existence of adjoints (Freyd's Theorem).

Part II: It includes topics from the list below, chosen according to the interests of the students:
Monads and categories of Eilenberg-Moore algebras. Cartesian closed categories. Toposes. Locales. Exact and regular categories. Additive, abelian, semi-abelian categories and homological categories.

Research and Events

Events

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Defended Theses

  • Asymptoptic invariants of Eulerian ideals
      Gonçalo Nuno Mota Varejão (December 2025)
      Jorge Neves
  • Some analytic and algebraic problems in the theory of orthogonal polynomials
      Alexandre Suzuki (November 2025)
      Kenier Castillo
  • Contributions to the theory of metric mean dimension
      Gustavo Sperotto Pessil (September 2025)
      Maria Pires de Carvalho
      Paulo Varandas
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