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Displaying 1 – 20 of 21
Searching for more absolute CR-epic spaces.
Barr, Michael, Kennison, John F., Raphael, R. (2009)
Theory and Applications of Categories [electronic only]
Semiconvex compacta
Oleh R. Nykyforchyn (1997)
Commentationes Mathematicae Universitatis Carolinae
We define and investigate a generalization of the notion of convex compacta. Namely, for semiconvex combination in a semiconvex compactum we allow the existence of non-trivial loops connecting a point with itself. It is proved that any semiconvex compactum contains two non-empty convex compacta, the center and the weak center. The center is the largest compactum such that semiconvex combination induces a convex structure on it. The convex structure on the weak center does not necessarily coincide...
Sequential convergences on Boolean algebras defined by systems of maximal filters
Roman Frič, Ján Jakubík (2001)
Czechoslovak Mathematical Journal
We study sequential convergences defined on a Boolean algebra by systems of maximal filters. We describe the order properties of the system of all such convergences. We introduce the category of 2-generated convergence Boolean algebras and generalize the construction of Novák sequential envelope to such algebras.
Several extremal coreflective classes in uniform spaces
Jiří Vilímovský (1980)
Czechoslovak Mathematical Journal
Small-fibred semitopological functors without small-fibred initial completions
Jan Reiterman (1979)
Commentationes Mathematicae Universitatis Carolinae
Sobriety and localic compactness in categories of -bitopological spaces.
El-Saady, Kamal, Bakier, M.Y. (2007)
International Journal of Mathematics and Mathematical Sciences
Some further aspects of G. Preuss' theory of E-connected spaces
Z. P. Mamuzić (1986)
Matematički Vesnik
Some properties of the functor .
Beshimov, R.B. (2004)
Zapiski Nauchnykh Seminarov POMI
Some relations between shape constructions
Friedrich W. Bauer (1978)
Cahiers de Topologie et Géométrie Différentielle Catégoriques
Some remarks on preservation of topological products
Luciano Stramaccia (1989)
Commentationes Mathematicae Universitatis Carolinae
Space structures, their theory and application. II.
Ivanov, A.A. (2004)
Zapiski Nauchnykh Seminarov POMI
Spaced spaces
I. Moerdijk (1984)
Compositio Mathematica
Strongly sequential spaces.
Mynard, Frédéric (2000)
Commentationes Mathematicae Universitatis Carolinae
Strongly sequential spaces
Frédéric Mynard (2000)
Commentationes Mathematicae Universitatis Carolinae
The problem of Y. Tanaka [10] of characterizing the topologies whose products with each first-countable space are sequential, is solved. The spaces that answer the problem are called strongly sequential spaces in analogy to strongly Fréchet spaces.
Strutture di convergenza per filtri
Maurizio Trombetta (1979)
Rendiconti del Seminario Matematico della Università di Padova
Subspaces in abstract Stone duality.
Taylor, Paul (2002)
Theory and Applications of Categories [electronic only]
Subspaces of pseudoradial spaces
Martin Sleziak (2003)
Mathematica Slovaca
Sur la catégorie des applications quasi-continues
Mario Chartrelle (1969)
Cahiers de Topologie et Géométrie Différentielle Catégoriques
Sur la classe des morphismes propres dans la catégorie des espaces de convergence
Bernard Brunet (1978)
Annales scientifiques de l'Université de Clermont. Mathématiques
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