Semidefinite functions on categories.
Set functor. II: Contravariant case
Set functors. III: Monomorphisms, epimorphisms, isomorphisms
Simmetrizzazioni di una categoria
Statistical convergence of subsequences of a given sequence.
Statistical convergence of subsequences of a given sequence
This paper is closely related to the paper of Harry I. Miller: Measure theoretical subsequence characterization of statistical convergence, Trans. Amer. Math. Soc. 347 (1995), 1811–1819 and contains a general investigation of statistical convergence of subsequences of an arbitrary sequence from the point of view of Lebesgue measure, Hausdorff dimensions and Baire’s categories.
Structural properties of endofunctors