Sapena Piera, Almanzor(Universitat Politècnica de València, 2001-04-01)
[EN] We give some examples nad properties of fuzzy metric spaces, in the sense of George and Veramani, and characterize the To topological spaces which admit a compatible uniformity that has a countable transitive base, ...
Nishijima, Kusuo; Yamada, Kohzo(Universitat Politècnica de València, 2007-10-01)
[EN] A metric space X is called straight if any continuous real-valued function which is uniformly continuous on each set of a finite cover of X by closed sets, is itself uniformly continuous. Let C be the convergent ...
Fernández, Manuel; Tkachenko, Mikhail G.(Editorial Universitat Politècnica de València, 2014-10-01)
[EN] It is shown that if all countable subgroups of a semitopological group G are precompact, then G is also precompact and that the closure of an arbitrary subgroup of G is again a subgroup. We present a general method ...
Removing the condition of symmetry in the notion of a fuzzy (pseudo)metric, in Kramosil and Michalek's sense, one has the notion of a fuzzy quasi-(pseudo-)metric. Then for each fuzzy quasi-pseudo-metric on a set X we ...