• closedAccess   Complete invariant fuzzy metrics on groups 

      Sánchez, Iván; Sanchis López, Manuel Elsevier (2018-01-01)
      We study some questions related to complete fuzzy metric topological groups (in the sense of Kramosil and Michael). Invariant fuzzy metrics are characterized and we prove that if (G, M, ∗) is a fuzzy metric group such ...
    • closedAccess   Fuzzy quasi-pseudometrics on algebraic structures 

      Sánchez, Iván; Sanchis López, Manuel Elsevier (2018-01)
      In this work we state a number of theorems about fuzzy (quasi-)pseudometrizable algebraic structures. Our most useful results are: (1) a fuzzy semitopological group whose topology is induced by a left-invariant fuzzy ...
    • openAccess   Transitivity in Fuzzy Hyperspaces 

      Jardón, Daniel; Sánchez, Iván; Sanchis, Manuel MDPI (2020)
      Given a metric space (X, d), we deal with a classical problem in the theory of hyperspaces: how some important dynamical properties (namely, weakly mixing, transitivity and point-transitivity) between a discrete dynamical ...