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Subjects
54-XX General topology
54Cxx Maps and general types of spaces defined by maps
54C50 Special sets defined by functions

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Displaying 1 – 20 of 109

A characterization of pseudocompactness.

Misra, Prabduh Ram, Vinodkumar (1981)

International Journal of Mathematics and Mathematical Sciences

A characterization of the $B$ -realcompact space

David K. Hsieh (1974)

Compositio Mathematica

A generalization of the theorem of Mauldin

Marek Balcerzak (1985)

Commentationes Mathematicae Universitatis Carolinae

A note on a paper of J.A. Guthrie and M. Henry

Angel Gutiérrez, Salvador Romaguera (1987)

Fundamenta Mathematicae

A note on almost continuous mappings and Baire spaces.

Tong, Jing Cheng (1983)

International Journal of Mathematics and Mathematical Sciences

A note on Baire isomorphism

Evgenij G. Pytkeev (1990)

Commentationes Mathematicae Universitatis Carolinae

A partition of R in two homogeneous and homeomorphic parts

Menu, Jan (1977)

Abstracta. 5th Winter School on Abstract Analysis

About the Maximum and the Minimum of Darboux Functions

Jana Farková (1971)

Matematický časopis

Algunos espacios topológicos que admiten una medida-categoría.

J.M. Ayerbe Toledano (1984)

Collectanea Mathematica

Always of the first category sets

Grzegorek, E. (1984)

Proceedings of the 12th Winter School on Abstract Analysis

Always of the first category sets (II)

Grzegorek, E. (1985)

Proceedings of the 13th Winter School on Abstract Analysis

An example concerning automorphisms of generalized cubes

Dorothy Maharam (1980)

Fundamenta Mathematicae

Applications of certain R-families

Wolfgang Sander (1984)

Fundamenta Mathematicae

Applications of Luzinian separation principles (non-separable case)

Zygmunt Frolik, P. Holický (1983)

Fundamenta Mathematicae

Atoms in the family of coreflective subcategories of uniform spaces

Michael David Rice (1986)

Commentationes Mathematicae Universitatis Carolinae

Baire class of completely additive systems of Baire sets

Preiss, David (1978)

Seminar Uniform Spaces

Baire classification and infinite perceptrons

Miroslav Katětov (1972)

Commentationes Mathematicae Universitatis Carolinae

Baire functions and classes bounded by filters

Miroslav Katětov (1975)

Commentationes Mathematicae Universitatis Carolinae

Baire outer kernels of sets.

Miller, Harry I. (1981)

Publications de l'Institut Mathématique. Nouvelle Série

Cardinal invariants of universals

Gareth Fairey, Paul Gartside, Andrew Marsh (2005)

Commentationes Mathematicae Universitatis Carolinae

We examine when a space $X$ has a zero set universal parametrised by a metrisable space of minimal weight and show that this depends on the $σ$ -weight of $X$ when $X$ is perfectly normal. We also show that if $Y$ parametrises a zero set universal for $X$ then $h L (X^{n}) \leq h d (Y)$ for all $n \in ℕ$ . We construct zero set universals that have nice properties (such as separability or ccc) in the case where the space has a $K$ -coarser topology. Examples are given including an $S$ space with zero set universal parametrised by an $L$ space (and...

Currently displaying 1 – 20 of 109

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