The Chromatic Number of a Class of Pseudo-2-Manifolds.
A.K. Dewdney (1972)
Manuscripta mathematica
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A.K. Dewdney (1972)
Manuscripta mathematica
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Georges Gras (1986/87)
Manuscripta mathematica
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Dan Haran (1984/85)
Manuscripta mathematica
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W.A. Kirk (1979/80)
Manuscripta mathematica
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K. Orlov, M. Stojanović (1974)
Matematički Vesnik
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H.O. Cordes (1979)
Manuscripta mathematica
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H. B. Potoczny (1984)
Matematički Vesnik
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Akbar Rezaei, Arsham Borumand Saeid, Andrzej Walendziak (2017)
Annales Universitatis Paedagogicae Cracoviensis. Studia Mathematica
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The notions of a dual pseudo-Q algebra and a dual pseudo-QC algebra are introduced. The properties and characterizations of them are investigated. Conditions for a dual pseudo-Q algebra to be a dual pseudo-QC algebra are given. Commutative dual pseudo-QC algebras are considered. The interrelationships between dual pseudo-Q/QC algebras and other pseudo algebras are visualized in a diagram.
Andrzej Myśliński (2010)
Control and Cybernetics
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Grzegorz Dymek (2015)
Discussiones Mathematicae - General Algebra and Applications
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The notions of a period of an element of a pseudo-BCI-algebra and a periodic pseudo-BCI-algebra are defined. Some of their properties and characterizations are given.
Endre Pap, Nenad Teofanov (1998)
The Yugoslav Journal of Operations Research
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M. C. Calderón-Moreno (2002)
Colloquium Mathematicae
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We give suitable conditions for the existence of many holomorphic functions f on a disc such that the image of any nonempty open subset under the action of pseudo shift operators on f is arbitrarily large. This generalizes an earlier result about images of derivatives and completes another one on infinite order differential operators.
Jin Yuan Zhou (1993)
Commentationes Mathematicae Universitatis Carolinae
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It is proved that, under the Martin’s Axiom, every -space with countable tightness is a subspace of some pseudo-radial space. We also give several characterizations of subspaces of pseudo-radial spaces and conclude that being a subspace of a pseudo-radial space is a local property.