Browsing by Author Martins-Ferreira, Nelson

Results 1 to 11 of 11
Issue DateTitleAuthor(s)TypeAccess
2016Baer sums of special Schreier extensions of monoidsMartins-Ferreira, Nelson ; Montoli, Andrea ; Sobral, Manuela articleembargoedAccess
2020Cancellative conjugation semigroups and monoidsGarrão, Ana Paula; Martins-Ferreira, Nelson ; Raposo, Margarida; Sobral, ManuelaarticleembargoedAccess
2009A note on two commutatorsMartins-Ferreira, Nelson ; Van der Linden, Tim preprintopenAccess
2010On categories with semidirect productsMartins-Ferreira, Nelson ; Sobral, Manuela preprintopenAccess
2017On some categorical-algebraic conditions in S-protomodular categoriesMartins-Ferreira, Nelson ; Montoli, Andrea ; Sobral, Manuela articleopenAccess
Oct-2019On the categorical behaviour of preordered groupsClementino, Maria Manuel ; Martins-Ferreira, Nelson ; Montoli, Andrea articleembargoedAccess
2020On the classification of Schreier extensions of monoids with non-abelian kernelMartins-Ferreira, Nelson ; Montoli, Andrea ; Patchkoria, Alex; Sobral, ManuelaarticleembargoedAccess
2014Schreier split epimorphisms between monoidsBourn, Dominique ; Martins-Ferreira, Nelson ; Montoli, Andrea ; Sobral, Manuela articleembargoedAccess
2013Semidirect products and crossed modules in monoids with operationsMartins-Ferreira, Nelson ; Montoli, Andrea ; Sobral, Manuela articleembargoedAccess
2014Semidirect Products and Split Short Five Lemma in Normal CategoriesMartins-Ferreira, Nelson ; Montoli, Andrea ; Sobral, Manuela articleembargoedAccess
2018The Nine Lemma and the push forward construction for special Schreier extensions of monoids with operationsMartins-Ferreira, Nelson ; Montoli, Andrea ; Sobral, ManuelaarticleembargoedAccess