Standard fuzzy uniform structures based on continuous t-norms

This paper deals with fuzzy uniform structures previously introduced by the authors [Fuzzy uniform structures and continuous t-norms, Fuzzy Sets Syst. 161 (2009) 1011-1021]. Our approach involves a covariant functor @J from the category of fuzzy uniform spaces and fuzzy uniformly continuous mappings (in our sense) to the category of uniform spaces and uniformly continuous mappings. We show that @J is well-behaved with respect to some significant fuzzy uniform concepts, and its behavior provides a method to introduce notions of fine fuzzy uniform structure and Stone-Cech fuzzy compactification in this context. Our method also applies to obtain fuzzy versions of some classical results on topological algebra and hyperspaces. The case of quasi-uniform structures is also analyzed.

[1]  Salvador Romaguera,et al.  The Hausdorff fuzzy quasi-metric , 2010, Fuzzy Sets Syst..

[2]  Kiiti Morita,et al.  Completion of hyperspaces of compact subsets and topological completion of open-closed maps , 1974 .

[3]  B. Schweizer,et al.  Statistical metric spaces. , 1960 .

[4]  Fletcher Quasi-Uniform Spaces , 1982 .

[5]  Salvador Romaguera,et al.  The Hausdor$ fuzzy metric on compact sets , 2004 .

[6]  Salvador Romaguera,et al.  Fuzzy uniform structures and continuous t-norms , 2010, Fuzzy Sets Syst..

[7]  Hans-Peter A. Künzi,et al.  Nonsymmetric Distances and Their Associated Topologies: About the Origins of Basic Ideas in the Area of Asymmetric Topology , 2001 .

[8]  P. Samuel,et al.  Ultrafilters and compactification of uniform spaces , 1948 .

[9]  Ivan L. Reilly,et al.  Quasi-Gauge Spaces , 1973 .

[10]  Manuel Sanchis,et al.  Continuous functions on locally pseudocompact groups , 1998 .

[11]  Leonard Gillman,et al.  Rings of continuous functions , 1961 .

[12]  W. Wistar Comfort,et al.  Pseudocompactness and uniform continuity in topological groups. , 1966 .

[13]  Valentín Gregori,et al.  Fuzzy quasi-metric spaces , 2004 .

[14]  W. Wistar Comfort,et al.  Locally pseudocompact topological groups , 1995 .

[15]  Maokang Luo,et al.  Fuzzy Stone-Ccech-type compactifications , 1989 .

[16]  A. George,et al.  On some results in fuzzy metric spaces , 1994 .

[17]  Valentín Gregory,et al.  Some properites of fuzzy metric spaces , 2000 .

[18]  Leonard Gillman,et al.  Rings of continuous functions , 1961 .

[19]  Manuel Sanchis,et al.  On fuzzy metric groups , 2001, Fuzzy Sets Syst..

[20]  van Douwen,et al.  Homogeneity of βG if G is a topological group , 1979 .

[21]  Gunther Jäger,et al.  Compactification of lattice-valued convergence spaces , 2010, Fuzzy Sets Syst..

[22]  Salvador Romaguera,et al.  The Banach fixed point theorem in fuzzy quasi-metric spaces with application to the domain of words , 2007 .

[23]  E. Michael Topologies on spaces of subsets , 1951 .

[24]  Ivan L. Reilly On generating quasi uniformities , 1970 .

[25]  Ivan Kramosil,et al.  Fuzzy metrics and statistical metric spaces , 1975, Kybernetika.