Results 11 to 20 of about 102 (83)

The compactificability classes: The behavior at infinity

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
We study the behavior of certain spaces and their compactificability classes at infinity. Among other results we show that every noncompact, locally compact, second countable Hausdorff space X such that each neighborhood of infinity (in the Alexandroff ...
Martin Maria Kovár
doaj   +3 more sources

On some approximation theorems for power q-bounded operators on locally convex vector spaces. [PDF]

open access: yesScientificWorldJournal, 2014
This paper deals with the study of some operator inequalities involving the power q‐bounded operators along with the most known properties and results, in the more general framework of locally convex vector spaces.
Lemle LD.
europepmc   +2 more sources

On the cohomology of arrangements of subtori

open access: yesJournal of the London Mathematical Society, Volume 106, Issue 3, Page 1999-2029, October 2022., 2022
Abstract Given an arrangement of subtori of arbitrary codimension in a complex torus, we compute the cohomology groups of the complement. Then, by using the Leray spectral sequence, we describe the multiplicative structure on the associated graded cohomology. We also provide a differential model for the cohomology ring, by considering a toric wonderful
Luca Moci, Roberto Pagaria
wiley   +1 more source

Compact self T1-complementary spaces without isolated points

open access: yesApplied General Topology, 2009
We present an example of a compact Hausdorff self T1-complementary space without isolated points. This answers Question 3.11 from [A compact Hausdorff topology that is a T1-complementof itself, Fund. Math. 175 (2002), 163–173] affirmatively.
Mikhail Tkachenko
doaj   +1 more source

Generalized α‐Attractor Models from Elementary Hyperbolic Surfaces

open access: yesAdvances in Mathematical Physics, Volume 2018, Issue 1, 2018., 2018
We consider generalized α‐attractor models whose scalar potentials are globally well‐behaved and whose scalar manifolds are elementary hyperbolic surfaces. Beyond the Poincaré disk D, such surfaces include the hyperbolic punctured disk D⁎ and the hyperbolic annuli A(R) of modulus μ = 2log⁡R > 0. For each elementary surface, we discuss its decomposition
Elena Mirela Babalic   +2 more
wiley   +1 more source

The Mean Value for Infinite Volume Measures, Infinite Products, and Heuristic Infinite Dimensional Lebesgue Measures

open access: yesJournal of Mathematics, Volume 2017, Issue 1, 2017., 2017
One of the goals of this article is to describe a setting adapted to the description of means (normalized integrals or invariant means) on an infinite product of measured spaces with infinite measure and of the concentration property on metric measured spaces, inspired from classical examples of means.
Jean-Pierre Magnot, Tepper L. Gill
wiley   +1 more source

not available

open access: yes, 2022
não disponívelThe purpose of this work is to study the isomorphic classifications of banach spaces c [0,'EPSILO']'TETA'c (k) and c ([0,'EPSILO'], c (k)), where 'EPSILO' is a ordinal number and k is a compact space.
Galego, Eloi Medina
core   +1 more source

Study of a Forwarding Chain in the Category of Topological Spaces between T0 and T2 with respect to One Point Compactification Operator

open access: yesChinese Journal of Mathematics, Volume 2014, Issue 1, 2014., 2014
In the following text, we want to study the behavior of one point compactification operator in the chain Ξ := {Metrizable, Normal, T2, KC, SC, US, T1, TD, TUD, T0, Top} of subcategories of category of topological spaces, Top (where we denote the subcategory of Top, containing all topological spaces with property P , simply by P).
Fatemah Ayatollah Zadeh Shirazi   +4 more
wiley   +1 more source

Isomorphisms on Weighed Banach Spaces of Harmonic and Holomorphic Functions

open access: yesJournal of Function Spaces, Volume 2013, Issue 1, 2013., 2013
For an arbitrary open subset U⊂ℝd or U⊆ℂd and a continuous function v : U→]0, ∞[ we show that the space hv0(U) of weighed harmonic functions is almost isometric to a (closed) subspace of c0, thus extending a theorem due to Bonet and Wolf for spaces of holomorphic functions Hv0(U) on open sets U⊂ℂd.
Enrique Jordá   +2 more
wiley   +1 more source

Embedding Topological $n$-Manifolds into Compact Nonstandard Topological $n$-Manifolds with Boundary

open access: yes, 2021
We show as a main message that there is a simple dimension-preserving way to openly and densely embed every topological manifold into a compact ``nonstandard'' topological manifold with boundary.
Yu-Lin Chou
core   +1 more source

Home - About - Disclaimer - Privacy