• openAccess   Nondiscrete P-Groups can be reflexive 

      Galindo, Jorge; Recoder Núñez, Luis; Tkachenko, Mikhail (2010-02)
      We present a series of examples of nondiscrete reflexive P-groups (i.e., groups in which all G -sets are open) as well as noncompact reflexive !-bounded groups (in which the closure of every countable set is compact). ...
    • closedAccess   Nondiscrete P-groups can be reflexive 

      Galindo, Jorge; Recoder Núñez, Luis; Tkachenko, Mikhail Elsevier (2011-02-01)
      We present the first examples of nondiscrete reflexive P-groups (topological groups in which countable intersections of open sets are open) as well as of noncompact reflexive ω-bounded groups (precompact groups in which ...
    • closedAccess   Reflexivity of prodiscrete topological groups  

      Galindo, Jorge; Recoder Núñez, Luis; Tkachenko, Mikhail Elsevier (2011)
      We study the duality properties of two rather different classes of subgroups of direct products of discrete groups (protodiscrete groups): P-groups, i.e., topological groups such that countable intersections of its open ...
    • closedAccess   Self-duality in the class of precompact groups 

      Tkachenko, Mikhail Elsevier (2009)
      A topological Abelian group G is called (strongly) self-dual if there exists a topological isomorphism Φ : G → G<sup>∧</sup> of G onto the dual group G<sup>∧</sup> (such that Φ (x) (y) = Φ (y) (x) for all x, y ∈ G). We ...