منابع مشابه
Weakly P-Small not P-Small Subsets in Groups
Answering a question of D.Dikranjan and I.Protasov we prove that each infinite group G contains a weakly P-small subset A ⊂ G which is not P-small. This means that for every n there are n pairwise disjoint translation copies of A in G but there is no infinitely many such disjoint copies. In this paper we answer a question of D.Dikranjan and I.Protasov concerning the relation between P-small and...
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ژورنال
عنوان ژورنال: Topology and its Applications
سال: 2009
ISSN: 0166-8641
DOI: 10.1016/j.topol.2009.04.011