Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 4

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: compactification

Sortuj według:

Ogranicz wyniki do:

Boolean algebra of one-point local compactifications

Polański Artur

Journal of Mathematics and Applications

2020

Vol. 43

113--121

For a given locally compact Hausdorff space we introduce a Boolean algebra structure on the family of all its one-point local compactifications.

Nonhomogeneity of Remainders, II

Arhangel'skii A. V., Mill J. van

Bulletin of the Polish Academy of Sciences. Mathematics

2015

Vol. 63, no. 1

67--71

We present an example of a separable metrizable topological group G having the property that no remainder of it is (topologically) homogeneous.

Some remarks on Hausdorff gaps and automorphisms of P(ω)/fin

Grzech M.

Czasopismo Techniczne. Nauki Podstawowe

2014

R. 111, z. 3-NP

13--19

We present, under the Continuum Hypothesis (CH), a construction of an automorphism of P(ω)/fin which maps a Hausdorff gap onto increasingly ordered gap of type (ω1, ω1) which is not a Hausdorff gap.

Artykuł przedstawia, przy założeniu Hipotezy Continuum, konstrukcję automorfizmu algebry P(ω)/fin, który przeprowadza lukę Hausdorffa na lukę niemającą własności Hausdorffa.

Projective coordinates and compactification in elliptic, parabolic and hyperbolic 2-D geometry

Biswas D.

Journal of Applied Analysis

2012

Vol. 18, nr 1

145-158

The result that the upper half plane is not preserved in the hyperbolic case has implications in physics, geometry and analysis. We discuss in details the introduction of projective coordinates for the EPH cases. We also introduce an appropriate compactification for all the three EPH cases, which results in a sphere in the elliptic case, a cylinder in the parabolic case and a crosscap in the hyperbolic case.