Remarks on non-planable dendroids
Remarks on open-closed mappings
Remarks on sequence-covering maps
In this paper, we prove that each sequence-covering and boundary-compact map on -metrizable spaces is 1-sequence-covering. Then, we give some relationships between sequence-covering maps and 1-sequence-covering maps or weak-open maps, and give an affirmative answer to the problem posed by F.C. Lin and S. Lin in [Lin.F.C.and.Lin.S-2011].
Remarks on strongly star-Menger spaces
A space is strongly star-Menger if for each sequence of open covers of , there exists a sequence of finite subsets of such that is an open cover of . In this paper, we investigate the relationship between strongly star-Menger spaces and related spaces, and also study topological properties of strongly star-Menger spaces.
Remarks on subsets of Cartesian products of metric spaces
Remarks on topologies uniquely determined by their continuous self maps
Representability of concrete categories by non-constant morphisms
Representation of Baire functions as continuous functions
Representing trees as relatively compact subsets of the first Baire class
Repulsive Fixed Points of Multivalued Transformations and the Fixed Point Index.
Réseaux électrique planaires I.
Reseaux électriques planaires II.
Residuality of the set of embeddings into Nagata's n-dimensional universal spaces
Resolutions of spaces and proper inverse systems in shape theory
Resolutions Of Spaces Are Strong Expansions
Retract varieties of monounary algebras
Rétractes Absolus de Voisinage Algébriques
2000 Mathematics Subject Classification: 54C55, 54H25, 55M20.We introduce the class of algebraic ANRs. It is defined by replacing continuous maps by chain mappings in Lefschetz’s characterization of ANRs. To a large extent, the theory of algebraic ANRs parallels the classical theory of ANRs. Every ANR is an algebraic ANR, but the class of algebraic ANRs is much larger; the most striking difference between these classes is that every locally equiconnected metrisable space is an algebraic ANR, whereas...
Retracting fans onto finite fans
Retractions and Open Mappings between Convex Sets.
Rétractions dans les espaces stratifiables