Equivariant sheaf cohomology.
Exemples d'actions non continues d'un groupe dans un compact.
Existence of joins and meets in the partially ordered family of CM-homomorphisms.
Expansive Automorphisms in Compact Groups.
Expansive transformation semigroups of endomorphisms
Factorizable groups of homeomorphisms
Filters and semigroup properties.
Finite commutative monoids of open maps
Fixed sets and free subgroups of groups acting on metric spaces.
Fragmentable mappings and CHART groups
The purpose of this note is two-fold: firstly, to give a new and interesting result concerning separate and joint continuity, and secondly, to give a stream-lined (and self-contained) proof of the fact that "tame" CHART groups are topological groups.
Fuzzy neighborhood structures on partially ordered groups.
Green's L-relation for semigroups and compactifications.
Green's L-relation for semigroups and compactifications. (Short Communication).
Green's relations, the V relation and congruences on S(X).
Groups acting on covering spaces
Groups associated with minimal flows
Let be topological semigroup, we consider an appropriate semigroup compactification of . In this paper we study the connection between subgroups of a maximal group in a minimal left ideal of , which arise as equivalence classes of some closed left congruence, and the minimal flow characterized by the left congruence. A particular topology is defined on a maximal group and it is shown that a closed subgroup under this topology is precisely the intersection of an equivalence class with the maximal...
Groups of homeomorphisms and normal subgroups of the group of permutations.
Hereditarily non-sensitive dynamical systems and linear representations
For an arbitrary topological group G any compact G-dynamical system (G,X) can be linearly G-represented as a weak*-compact subset of a dual Banach space V*. As was shown in [45] the Banach space V can be chosen to be reflexive iff the metric system (G,X) is weakly almost periodic (WAP). In the present paper we study the wider class of compact G-systems which can be linearly represented as a weak*-compact subset of a dual Banach space with the Radon-Nikodým property. We call such a system a Radon-Nikodým...
Hereditarily unicoherent continua and monotone structures.
Heteroclinic points of multi-dimensional dynamical systems.