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𝒯 0 - and 𝒯 1 -reflections

Maria Manuel Clementino (1992)

Commentationes Mathematicae Universitatis Carolinae

In an abstract category with suitable notions of subobject, closure and point, we discuss the separation axioms T 0 and T 1 . Each of the arising subcategories is reflective. We give an iterative construction of the reflectors and present characteristic examples.

-closed sets in biclosure spaces

Chawalit Boonpok (2009)

Acta Mathematica Universitatis Ostraviensis

In the present paper, we introduce and study the concept of -closed sets in biclosure spaces and investigate its behavior. We also introduce and study the concept of -continuous maps.

α -compact fuzzy topological spaces

Samajh, Singh Thakur, Ratnesh Kumar Saraf (1995)

Mathematica Bohemica

The purpose of this paper is to introduce and discuss the concept of α -compactness for fuzzy topological spaces.

Γ Limiti e analisi non standard

Vincenzo M. Tortorelli (1985)

Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni

In this note we give a nonstandard characterization of multiple topological Γ operators as sup-min of standard part map.

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