A fixed point theorem for expansion mappings in metric spaces over topological semifields
S. Č. Nešić (1991)
Matematički Vesnik
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S. Č. Nešić (1991)
Matematički Vesnik
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J. Anusiak, K. P. Shum (1971)
Colloquium Mathematicae
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Fundamenta Mathematicae
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Eric K. van Douwen (1979)
Colloquium Mathematicae
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Artur Piękosz (2013)
Annales Polonici Mathematici
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We begin a systematic study of the category GTS of generalized topological spaces (in the sense of H. Delfs and M. Knebusch) and their strictly continuous mappings. We reformulate the axioms. Generalized topology is found to be connected with the concept of a bornological universe. Both GTS and its full subcategory SS of small spaces are topological categories. The second part of this paper will also appear in this journal.
G. J. Michaelides (1975)
Colloquium Mathematicae
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Nurettin Bağırmaz, İlhan İçen, Abdullah F. Özcan (2016)
Topological Algebra and its Applications
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The concept of topological group is a simple combination of the concepts of abstract group and topological space. The purpose of this paper is to combine the concepts of topological space and rough groups; called topological rough groups on an approximation space.
T. Nadzieja, J. Šiska (1988)
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Nat Friedman (2006)
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Nat Friedman (2001)
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