Results 41 to 50 of about 377,650 (220)

Quantum corrections to the accretion onto a Schwarzschild black hole in the background of quintessence

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
It is well known that quantum effects may lead to removal of the intrinsic singularity point of back holes. Also, the quintessence scalar field is a candidate model for describing late-time acceleration expansion.
Kourosh Nozari   +2 more
doaj   +1 more source

Concerning the existence of Einstein and Ricci soliton metrics on solvable Lie groups

open access: yes, 2010
In this work we investigate solvable and nilpotent Lie groups with special metrics. The metrics of interest are left-invariant Einstein and algebraic Ricci soliton metrics.
Alekseevskiĭ   +15 more
core   +1 more source

New Born-Infeld and $Dp$-Brane Actions under 2-Metric and 3-Metric Prescriptions

open access: yes, 2007
The parent action method is utilized to the Born-Infeld and $Dp$-brane theories. Various new forms of Born-Infeld and $Dp$-brane actions are derived by using this systematic approach, in which both the already known 2-metric and newly proposed 3-metric ...
C. V. Johnson   +3 more
core   +1 more source

Empirical geodesic graphs and CAT(k) metrics for data analysis

open access: yes, 2019
A methodology is developed for data analysis based on empirically constructed geodesic metric spaces. For a probability distribution, the length along a path between two points can be defined as the amount of probability mass accumulated along the path ...
Kobayashi, Kei, Wynn, Henry P.
core   +1 more source

Certain investigations of sequential warped product submanifolds on cosymplectic manifolds

open access: yesJournal of Inequalities and Applications, 2023
In a special class of almost contact metric manifolds known as cosymplectic manifolds, the current study aims to establish the existence result and a few inequalities for sequential warped product submanifolds.
Anil Sharma   +3 more
doaj   +1 more source

On Properties of the Intrinsic Geometry of Submanifolds in a Riemannian Manifold [PDF]

open access: yes, 2014
In the paper we study the properties of a metric function which is the extension by continuity of the intrinsic metric of the interior of a submanifold to its boundary.
Kopylov, Anatoly P.   +1 more
core  

Inflation for Bianchi IX model

open access: yes, 1996
The influence of Inflation on initial (i.e. at Planck's epoch) large anisotropy of the Universe is studied, considering a more general metric than the isotropic one: the locally rotationally symmetric (L.R.S.) Bianchi IX metric.
A. B. Henriques   +37 more
core   +2 more sources

Revisiting Probabilistic Metric Spaces

open access: yesInternational Journal of Topology
The field of probabilistic metric spaces has an intrinsic interest based on a blend of ideas drawn from metric space theory and probability theory. The goal of the present paper is to introduce and study new ideas in this field.
Michael D. Rice
doaj   +1 more source

P-Cyclic C-Contraction Result in Menger Spaces Using a Control Function

open access: yesDemonstratio Mathematica, 2016
The intrinsic flexibility of probabilistic metric spaces makes it possible to extend the idea of contraction mapping in several inequivalent ways, one of which being the C-contraction. Cyclic contractions are another type of contractions used extensively
Choudhury B. S., Bhandari S. K.
doaj   +1 more source

Home - About - Disclaimer - Privacy