4 citations · 12 across the 12 of their papers we have counts for
4 papers · 2 filters
Cardinality of the Ellis semigroup on compact metric countable spaces
S. Garcia-Ferreira, Y. Rodriguez-Lopez, C. Uzcategui
Let be the Ellis semigroup of a dynamical system where is a compact metric space. We analyze the cardinality of for a compact countable metric space $…
Categorical properties on the hyperspace of nontrivial convergent sequences
S. Garcia-Ferreira, R. Rojas-Hernandez, Y. F. Ortiz-Castillo
In this paper, we shall study categorial properties of the hyperspace of all nontrivial convergent sequences of a Freéch-Urysohn space , this hyperspace is eq…
-Ideals and outer measures on the real line
S. García-Ferreira, A. H. Tomita, Y. F. Ortiz-Castillo
A {\it weak selection} on is a function such that for each . In this article, w…
Comparing Fréchet-Urysohn filters with two pre-orders
S. Garcia-Ferreira, J. E. Rivera-Gómez
A filter $\F$ on $\w$ is called Fréchet-Urysohn if the space with only one non-isolated point $\w \cup \{\F\}$ is a Fréchet-Urysohn space, where the neighborhoods of the non-isolat…