Results 61 to 70 of about 1,223,041 (189)

On Maximal Homogeneous 3-Geometries—A Polyhedron Algorithm for Space Tilings

open access: yesUniverse, 2018
In this paper we introduce a polyhedron algorithm that has been developed for finding space groups. In order to demonstrate the problem and the main steps of the algorithm, we consider some regular plane tilings in our examples, and then we generalize ...
István Prok
doaj   +1 more source

Una introducción a los continuos homogéneos

open access: yesRevista Integración, 2011
Un continuo es un espacio métrico, compacto y conexo. Un continuo X es homogéneo si para cualesquiera dos de sus puntos x1 y x2 de X, existe un homeomorfismo h: X →→ X tal que h(x1) = x2.
Sergio Macías
doaj  

Investigation of a Spin-0 Massive Charged Particle Subject to a Homogeneous Magnetic Field with Potentials in a Topologically Trivial Flat Class of Gödel-Type Space-Time

open access: yesAdvances in High Energy Physics, 2020
In this paper, we investigate the relativistic quantum dynamics of spin-0 massive charged particle subject to a homogeneous magnetic field in the Gödel-type space-time with potentials.
Faizuddin Ahmed
doaj   +1 more source

Characterization of a homogeneous Orlicz space

open access: yesElectronic Journal of Differential Equations, 2017
In this article we define and characterize the homogeneous Orlicz space $\mathscr{D}^{1,\Phi}_{\rm o}(\mathbb{R}^{N})$ where $\Phi:\mathbb{R}\to [0,+\infty)$ is the N-function generated by an odd, increasing and not-necessarily differentiable ...
Waldo Arriagada, Jorge Huentutripay
doaj  

Embeddable quantum homogeneous spaces

open access: yesJournal of Mathematical Analysis and Applications, 2014
20 pages, 1 figure, exposition improved in Section 7, several references ...
Kasprzak, Paweł, Sołtan, Piotr M.
openaire   +2 more sources

Orthogonal Appell bases for Hodge-de Rham systems in Euclidean spaces [PDF]

open access: yes, 2011
Recently the Gelfand-Tsetlin construction of orthogonal bases has been explicitly described for the spaces of k-homogeneous polynomial solutions of the Hodge-de Rham system in the Euclidean space R^m which take values in the space of s-vectors.
Lavicka, Roman
core  

Homogeneous Subspaces of Products of Extremally Disconnected Spaces

open access: yes, 2018
Homogeneous countably compact spaces $X$ and $Y$ whose product $X\times Y$ is not pseudocompact are constructed. It is proved that all compact subsets of homogeneous subspaces of the third power of an extremally disconnected space are finite.
Reznichenko, Evgenii
core  

Necessary and Sufficient Conditions for the Boundedness of Multiple Integral Operators with Super-Homogeneous Kernels in Weighted Lebesgue Space

open access: yesAxioms
Super-homogeneous functions including homogeneous functions, quasi-homogeneous functions, and several non-homogeneous functions are considered. Using the weight function method, the construction conditions of Hilbert-type multiple integral inequalities ...
Yong Hong, Bing He, Lijuan Zhang
doaj   +1 more source

More on the cardinality of a topological space

open access: yesApplied General Topology, 2018
In this paper we continue to investigate the impact that various separation axioms and covering properties have onto the cardinality of topological spaces. Many authors have been working in that field.
M. Bonanzinga   +3 more
doaj   +1 more source

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