A New Proof of a Theorem concerning Decomposable Groups

نویسندگان

  • Wojciech Chojnacki
  • WOJCIECH CHOJNACKI
چکیده

We give an elementary proof of the following result: If G is a compact non-zero Abelian group with dual isomorphic to a subgroup of Q, such that U u (U) = G \ G(2) and U n (U) = 0 for some open subset U c G, where G(2) = {a E G: 2a = O}, then G is topologically isomorphic with T.

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تاریخ انتشار 2007