Seminars/Talks in National Meetings


January 13, 2015 November 25, 2014 October 28, 2014 September 30, 2014 September 09, 2014: X Portuguese Category Seminar June 24, 2014 March 18, 2014 October 15, 2013 July 01, 2013: IX Portuguese Category Seminar June 04, 2013
March 26, 2013
September 24-28, 2012
July 18, 2012
February 28, 2012
February 20, 2012
October 25, 2011

Talks in International Conferences


3rd Workshop on Categorical Methods in Non-Abelian Algebra, Louvain-la-Neuve, January 29, 2015:
Maria Manuel Clementino, On topological algebras: semidirect products and representation of algebras
Dirk Hofmann, Extending Stone duality to metric spaces.
Andrea Montoli, Semidirect products and internal structures in monoids with operations.
Andrea Montoli, On extensions and cohomology: Baer sums and Schreier-Mac Lane theorem.
Nelson Martins-Ferreira, Connections between algebraic categories: naturally Mal'tsev, Mal'tsev and weakly Mal'tsev.
Diana Rodelo, Higher central extensions and cohomology.
Diana Rodelo, Connections between algebraic categories, II.
Manuela Sobral, Semidirect products and internal actions.

Algebra Workshop 2014 - 34 years of CAUL, Lisbon, November 19-21, 2014:
Maria Manuel Clementino, On the representability of actions for topological algebras
Manuela Sobral, Grothendieck descent and distributive lattices.
Lurdes Sousa, Kan-injectivity.

Séminaire Itinérant de Catégories, Paris, November 8, 2014:
Maria Manuel Clementino, On topological semi-abelian algebras: split extensions and their classifiers.

PSSL96, Palermo, October 11-12, 2014:
Maria Manuel Clementino, On the representability of actions for topological groups.
Manuela Sobral, Some remarks on descent for Priestley spaces.
Diana Rodelo, A criterion for reflectiveness of normal extensions with an application to monoids.

Category Theory 2014, Cambridge, June 29-July 5, 2014:
Nelson Martins-Ferreira, New Wide Classes of Weakly Mal'tsev Categories.
Andrea Montoli, Monoids and pointed S-protomodular categories.
Diana Rodelo, Mal'tsev related properties for normal relations (poster).

Séminaire Itinérant de Catégories, Louvain-la-Neuve, May 17, 2014:
Maria Manuel Clementino, The monads of classical algebra are seldom weakly cartesian.
Andrea Montoli, Monoides et catégories pointées S-protomodulaires.

Categorical Methods in Algebra and Topology (& 2nd Workshop on Categorical Methods in Non-Abelian Algebra), Coimbra, January 24-26, 2014:
Dirk Hofmann, On monads of (the dual) Kock-Zoberlein type in topology.
Andrea Montoli, Characteristic subobjects in semi-abelian categories.
Nelson Martins-Ferreira, On the coincidence of internal categories and internal groupoids.
Diana Rodelo, A remark on pullbacks in Gumm categories.

Séminaire Itinérant de Catégories, Paris, November 16, 2013:
Andrea Montoli, Sous-objets caractéristiques dans les catégories semi-abéliennes.

Category Theory 2013, Sydney, July 10, 2013:
Nelson Martins-Ferreira, On topological spaces and fibrous preorders.
Diana Rodelo, Remarks on 2-permutability in regular multi-pointed categories.

Séminaire Itinérant de Catégories, Louvain-la-Neuve, May 24, 2013:
Diana Rodelo, A homological lemma for 2-star-permutable categories.

1st Workshop on Categorical Methods in Non-Abelian Algebra, Coimbra, February 7-9, 2013:
Dirk Hofmann, Covering morphisms in categories of relational algebras.
Andrea Montoli, Malt'sev aspects of Schreier split epimorphisms in monoids.
Nelson Martins-Ferreira, Multiplicative and Star-multiplicative graphs in protomodular categories.
Diana Rodelo, On n-permutability of congruences in categories.
Lurdes Sousa, On the localness of the embedding of algebras.

Coalgebraic Logic, Leibniz Zentrum fur Informatik, Germany, October 7-12, 2012:
Dirk Hofmann, Variations on a theme of Vietoris.

Workshop on Category Theory, Coimbra, July 13, 2012:
Andrea Montoli, Semidirect products and Split Short Five Lemma in normal categories.
Nelson Martins-Ferreira, Neighbourhood relations in point-set topology.
Diana Rodelo, The cuboid lemma and Mal'tsev categories.

Workshop on Semi-Groups, Lisbon, May 25, 2012:
Manuela Sobral, Semidirect products and crossed modules in monoids with operations.

Séminaire Itinérant de Catégories, Louvain-la-Neuve, May 19, 2012
Diana Rodelo, Techniques variétales pour les catégories de Goursat.

PSSL 93, Cambridge, April 16, 2012:
Nelson Martins-Ferreira, Topological space objects.

Séminaire Itinérant de Catégories, Paris, February 25, 2012:
Andrea Montoli, Produits semi-directs et lemme des cinq court scindé dans les catégories algébriques.