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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

  • Deformation theory of Lie algebroids, their morphisms and applications
      Sebastián Camilo Daza Alfonso (July 2026)
      João Nuno Mestre
  • Measure and randomness in locales
      Raquel Viegas Bernardes (January 2026)
      Jorge Picado
  • Graphs associated to reduced words in classical Weyl groups
      Diogo André Cardoso Conde Soares (January 2026)
      Ricardo Mamede
      José Luís Santos
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