Proximal convergence

Suppose X is a topological space and Y a proximity space , fn L C f (Leader Convergence) iff for each A in X, B in Y, f(A) near B implies eventually fn (A) is near B. L.C. is a generalization of U. C. (Uniform Convergence). In this paper we study L. C. and various generalizations and prove analogues of the classical results of Arzelà, Dini and others

Topologies on the autohomeomorphic group

Abstracts of the Summer Topology Conference New Yor

Spazi quasimetrici e topologie ad essi associate

Sommario: Si definiscono e si studiano le quasimetriche per un insieme S non vuoto come applicazioni dell' insieme SxS nell'insieme R dei numeri reali soddisfacenti l'assioma della coincidenza e l' assioma triangolare. Si generalizzano , inoltre, risultati di W.A. Wilson [6] e G.E. Albert [1] che si sono interessati delle quasimetriche non negative

Topologies on the autohomeomorphic group of 0-dimensional separable metrizable space

Abstracts of the V COnference Ibero-American on Topology Lorc

Group action on 0-dimensional spaces

Abstracts of the VI Ibero-American Conference on Topology Puebl