Comfort and Remus [W.W. Comfort, D. Remus, Abelian torsion groups with a pseudo-compact group topology, Forum Math. 6 (3) (1994) 323-337] characterized algebraically the Abelian torsion groups that admit a pseudocompact ...

We show that if p is a selective ultrafilter, then for each cardinal alpha <= omega(1), there exists a topological group G such that G(beta) is almost p-compact (in particular, countably compact), for beta < alpha, ...

The purpose of this paper is to study the ideals and filters on countable sets, which commonly known as filters on ω or ideals on ω. Within these, we will focus in the class of I-ultrafilters which were studied by James ...

The principle of Close Coherence of Filters (NCF) was introduced by Andreas Blass in response to a Functional Analysis problem. Given a function f: ω → ω, and a filter U on ω, we define the image of U under f, denoted f ...

In 1967 Arhangel skii wondered if there are nondiscrete extremally disconnected topological groups. Soon after, Sirota showed that, for the countable case, its existence is consistent by assuming CH. Several of the results ...

Ramsey theory studies the conditions that must be imposed to a structure in order to guarantee the existence of homogeneous substructures. To do that, several structures and several colorings have been studied, including ...

Objetivo:Determinar la presencia de rotavirus y norovirus en agua para consumo humano en una localidad de Bogotá. Materiales y métodos:Se recolectaron ocho muestras de agua por semana en ocho lugares diferentes del predio ...

Se realizó el diseño de un proceso aguas abajo (downstream) para la producción de vacunas de partículas virales para la COVID-19 recuperadas de Nicotiana benthamiana en Perú tomando como modelo de expresión del gen viral ...