Browsing by Author Martins-Ferreira, Nelson
Results 1 to 12 of 12
| Issue Date | Title | Author(s) | Type | Access |
|---|---|---|---|---|
| 2016 | Baer sums of special Schreier extensions of monoids | Martins-Ferreira, Nelson ; Montoli, Andrea ; Sobral, Manuela | article | embargoedAccess |
| 2020 | Cancellative conjugation semigroups and monoids | Garrão, Ana Paula; Martins-Ferreira, Nelson ; Raposo, Margarida; Sobral, Manuela | article | embargoedAccess |
| 2009 | A note on two commutators | Martins-Ferreira, Nelson ; Van der Linden, Tim | preprint | openAccess |
| 2010 | On categories with semidirect products | Martins-Ferreira, Nelson ; Sobral, Manuela | preprint | openAccess |
| 2017 | On some categorical-algebraic conditions in S-protomodular categories | Martins-Ferreira, Nelson ; Montoli, Andrea ; Sobral, Manuela | article | openAccess |
| Oct-2019 | On the categorical behaviour of preordered groups | Clementino, Maria Manuel ; Martins-Ferreira, Nelson ; Montoli, Andrea | article | embargoedAccess |
| 2020 | On the classification of Schreier extensions of monoids with non-abelian kernel | Martins-Ferreira, Nelson ; Montoli, Andrea ; Patchkoria, Alex; Sobral, Manuela | article | embargoedAccess |
| 2014 | Schreier split epimorphisms between monoids | Bourn, Dominique ; Martins-Ferreira, Nelson ; Montoli, Andrea ; Sobral, Manuela | article | embargoedAccess |
| 2013 | Semidirect products and crossed modules in monoids with operations | Martins-Ferreira, Nelson ; Montoli, Andrea ; Sobral, Manuela | article | embargoedAccess |
| 2014 | Semidirect Products and Split Short Five Lemma in Normal Categories | Martins-Ferreira, Nelson ; Montoli, Andrea ; Sobral, Manuela | article | embargoedAccess |
| 2018 | The Nine Lemma and the push forward construction for special Schreier extensions of monoids with operations | Martins-Ferreira, Nelson ; Montoli, Andrea ; Sobral, Manuela | article | embargoedAccess |
| 2023 | Weakly Schreier extensions for general algebras | Manuell, Graham ; Martins-Ferreira, Nelson | article | openAccess |