Page 9 - Textos de Matemática Vol. 46

G. Janelidze
CONTENTS
Mathematical Greetings to Manuela Sobral 1 J. Ad´amek
Colimits of Monads 7 B. Banaschewski
Remarks on strong 0-dimensionality in pointfree topology 35 F. Borceux, M. M. Clementino, and A. Montoli
On the representability of actions for topological algebras 41
D. Bourn
A note on the notion of characteristic subobject in the Mal’tsev and protomodular settings 67
C. Caldeira and J. F. Queiro´
A note on invariant factors 93 M. M. Clementino and W. Tholen
From lax monad extensions to topological theories 99 M. Gran and D. Rodelo
Some remarks on pullbacks in Gumm categories 125 R. Guitart
Mathematical Morphology with Regimes in Algebraic Universes 137 J. Guti´errez Garc´ıa, J. Picado, and A. Pultr
Notes on point-free real functions and sublocales 167 D. Hofmann and P. Nora
Esakia spaces via idempotent split completion 201 N. Martins-Ferreira
From A-spaces to arbitrary spaces via spatial fibrous preorders 221 A. Montoli, D. Rodelo, and T. Van der Linden
On the reflectiveness of special homogeneous surjections of monoids 237 A. P. Santana and I. Yudin
Stratifying ideals and twisted products 245
L. Sousa
On the localness of the embedding of algebras 259