Pseudo-metrizability of quotient spaces
C. J. Himmelberg (1968)
Fundamenta Mathematicae
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C. J. Himmelberg (1968)
Fundamenta Mathematicae
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Mamuzić, Z.
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Howard Sherwood (1979)
Stochastica
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Probabilistic normed linear spaces (briefly PNL spaces) were first studied by A. N. Serstnev in [1]. His definition was motivated by the definition of probabilistic metric spaces (PM spaces) which were introduced by K. Menger and subsequebtly developed by A. Wald, B. Schweizer, A. Sklar and others. In a previuos paper [2] we studied the relationship between two important classes of PM spaces, namely E-spaces and pseudo-metrically generated PM spaces. We showed that a PM space...
Endre Pap, Nenad Teofanov (1998)
The Yugoslav Journal of Operations Research
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K. Orlov, M. Stojanović (1974)
Matematički Vesnik
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Zenon Moszner, Maria Żurek-Etgens (1987)
Archivum Mathematicum
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H. B. Potoczny (1984)
Matematički Vesnik
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Mauricio E. Chacón-Tirado, Alejandro Illanes, Rocío Leonel (2012)
Colloquium Mathematicae
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An embedding from a Cartesian product of two spaces into the Cartesian product of two spaces is said to be factorwise rigid provided that it is the product of embeddings on the individual factors composed with a permutation of the coordinates. We prove that each embedding of a product of two pseudo-arcs into itself is factorwise rigid. As a consequence, if X and Y are metric continua with the property that each of their nondegenerate proper subcontinua is homeomorphic to the pseudo-arc,...
Rajab Ali Borzooei, Arsham Borumand Saeid, Akbar Rezaei, Akefe Radfar, Reza Ameri (2013)
Discussiones Mathematicae - General Algebra and Applications
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In this paper, we introduce the notion of pseudo BE-algebra which is a generalization of BE-algebra. We define the concepts of pseudo subalgebras and pseudo filters and prove that, under some conditions, pseudo subalgebra can be a pseudo filter. We prove that every homomorphic image and pre-image of a pseudo filter is also a pseudo filter. Furthermore, the notion of pseudo upper sets in pseudo BE-algebras introduced and is proved that every pseudo filter is an union of pseudo upper sets. ...
Jacob Burbea (1981)
Annales Polonici Mathematici
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Pap, Endre, Ralević, Nebojša M. (1999)
Novi Sad Journal of Mathematics
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