summary:Let $G$ be a group, $\beta G$ be the Stone-Čech compactification of $G$ endowed with the structure of a right topological semigroup and $G^*=\beta G\setminus G$. Given any subset $A$ of $G$ and $p\in G^*$, we define the $p$-companion $\Delta _p(A)= A^*\cap Gp$ of $A$, and characterize the subsets with finite and discrete ultracompanions
Abstract The spectrum of an admissible subalgebra \(\mathscr{A}(G)\) of \(LUC(G)(G)\), the algebra ...
AbstractWe show that the existence of a non-metrizable compact subspace of a topological group G oft...
The spectrum of an admissible subalgebra A(G) of LUC(G), the algebra of right uniformly continuous ...
summary:Let $G$ be a group, $\beta G$ be the Stone-Čech compactification of $G$ endowed with the str...
summary:Let $G$ be a group, $\beta G$ be the Stone-Čech compactification of $G$ endowed with the str...
summary:For every discrete group $G$, the Stone-Čech compactification $\beta G$ of $G$ has a natural...
summary:For every discrete group $G$, the Stone-Čech compactification $\beta G$ of $G$ has a natural...
summary:For every discrete group $G$, the Stone-Čech compactification $\beta G$ of $G$ has a natural...
AbstractFor a discrete group G, we consider βG, the Stone–Čech compactification of G, as a right top...
Abstract. Let G be a topological group which is not a P-group. Then the Stone-Čech compactification...
summary:We prove that the semigroup operation of a topological semigroup $S$ extends to a continuous...
AbstractLet (T,+) be a Hausdorff semitopological semigroup, S be a dense subsemigroup of T and e be ...
Abstract. Every topological group G has some natural compactifica-tions which can be a useful tool o...
Dado um semigrupo S e a topologia discreta sobre ele, é possível estender a operação ao compactifica...
AbstractLet (G,∗) be an infinite groupoid. We establish here that the operation ∗ extends to βG maki...
Abstract The spectrum of an admissible subalgebra \(\mathscr{A}(G)\) of \(LUC(G)(G)\), the algebra ...
AbstractWe show that the existence of a non-metrizable compact subspace of a topological group G oft...
The spectrum of an admissible subalgebra A(G) of LUC(G), the algebra of right uniformly continuous ...
summary:Let $G$ be a group, $\beta G$ be the Stone-Čech compactification of $G$ endowed with the str...
summary:Let $G$ be a group, $\beta G$ be the Stone-Čech compactification of $G$ endowed with the str...
summary:For every discrete group $G$, the Stone-Čech compactification $\beta G$ of $G$ has a natural...
summary:For every discrete group $G$, the Stone-Čech compactification $\beta G$ of $G$ has a natural...
summary:For every discrete group $G$, the Stone-Čech compactification $\beta G$ of $G$ has a natural...
AbstractFor a discrete group G, we consider βG, the Stone–Čech compactification of G, as a right top...
Abstract. Let G be a topological group which is not a P-group. Then the Stone-Čech compactification...
summary:We prove that the semigroup operation of a topological semigroup $S$ extends to a continuous...
AbstractLet (T,+) be a Hausdorff semitopological semigroup, S be a dense subsemigroup of T and e be ...
Abstract. Every topological group G has some natural compactifica-tions which can be a useful tool o...
Dado um semigrupo S e a topologia discreta sobre ele, é possível estender a operação ao compactifica...
AbstractLet (G,∗) be an infinite groupoid. We establish here that the operation ∗ extends to βG maki...
Abstract The spectrum of an admissible subalgebra \(\mathscr{A}(G)\) of \(LUC(G)(G)\), the algebra ...
AbstractWe show that the existence of a non-metrizable compact subspace of a topological group G oft...
The spectrum of an admissible subalgebra A(G) of LUC(G), the algebra of right uniformly continuous ...
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