Bulletin mathématique de la Société des Sciences Mathématiques de la République Socialiste de Roumanie, Nouvelle Série, Vol. 25 (73), No. 2 (1981), pp. 129-141 (13 pages) Using De Blasi's definition ...
The following theorem is proved. Let G be a topological abelian group and E a subset of G for which there exist k elements a1,..., ak such that (E+a1) ⋃ ... ⋃ (E+ak) = G. Let further V be a ...
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