Abstract
We study the behaviour of large, small and medium subsets with respect to homomorphisms and products of groups. Then we introduce the definition af a P-small set in abelian groups and we investigate the relations between this kind of smallness and the previous one, giving some examples that distinguish them.
Publisher
Universitat Politecnica de Valencia
Reference4 articles.
1. On the Existence of Characters in Topological Groups
2. Dikran N. Dikranjan, Ivan R. Prodanov, Luchezar N. Stoyanov, Topological Groups: Characters, Dualities and Minimal Group Topologies, Pure and Applied Mathematics, Vol. 130 (Marcel Dekker Inc. New York-Basel, 1989).
3. Bohr compactifications and a result of følner
4. On groups with full Banach mean value
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