Results 11 to 20 of about 102,344 (170)

Cyclic Mappings and Further Results in B-Metric-Like Spaces

open access: yesComplexity, 2021
Fixed point problem of many mappings has been widely studied in the research work of fixed point theory. The generalized metric space is one of the research objects of fixed point theory.
Shengquan Weng   +3 more
doaj   +1 more source

Neutrosophic Triplet Partial Bipolar Metric Spaces [PDF]

open access: yesNeutrosophic Sets and Systems, 2020
In this article, neutrosophic triplet partial bipolar metric spaces are obtained. Then some definitions and examples are given for neutrosophic triplet partial bipolar metric space. Based on these definitions, new theorems are given and proved.
Memet Şahin   +2 more
doaj   +1 more source

Hodge Theory on Metric Spaces [PDF]

open access: yesFoundations of Computational Mathematics, 2011
appendix by Anthony W. Baker, 48 pages, AMS-LaTeX. v2: final version, to appear in Foundations of Computational Mathematics.
Bartholdi, Laurent   +4 more
openaire   +3 more sources

The relativistic uniform model: the metric of the covariant theory of gravitation inside a body

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2021
In the paper, it has been established that the sum of stress-energy tensors of the electromagnetic and gravitational fields, the acceleration and the pressure ones inside a stationary uniform spherical body vanishes within the framework of relativistic ...
Fedosin Sergey
doaj   +1 more source

A geometrical representation of the quantum information metric in the gauge/gravity correspondence

open access: yesPhysics Letters B, 2022
We study a geometrical representation of the quantum information metric in the gauge/gravity correspondence. We consider the quantum information metric that measures the distance between the ground states of two theories on the field theory side, one of ...
Asato Tsuchiya, Kazushi Yamashiro
doaj   +1 more source

Transfinite methods in metric fixed-point theory

open access: yesAbstract and Applied Analysis, 2003
This is a brief survey of the use of transfinite induction in metric fixed-point theory. Among the results discussed in some detail is the author's 1989 result on directionally nonexpansive mappings (which is somewhat sharpened), a result of Kulesza and ...
W. A. Kirk
doaj   +1 more source

An effective version of definability in metric structures [PDF]

open access: yesAUT Journal of Mathematics and Computing, 2022
In this paper, a computably definable predicate in metric structures is defined and characterized. Then, it is proved that every separable infinite-dimensional Hilbert structure in an effectively presented language is computable.
Nazanin Roshandel Tavana
doaj   +1 more source

Torsion Wave Solutions in Yang-Mielke Theory of Gravity

open access: yesAdvances in High Energy Physics, 2015
The approach of metric-affine gravity initially distinguishes it from Einstein’s general relativity. Using an independent affine connection produces a theory with 10 + 64 unknowns. We write down the Yang-Mills action for the affine connection and produce
Vedad Pasic, Elvis Barakovic
doaj   +1 more source

Parity violating metric-affine gravity theories [PDF]

open access: yesClassical and Quantum Gravity, 2021
Abstract We study a metric-affine gravitational theory given by the Einstein–Hilbert (EH) action plus a parity violating contribution (which we will refer to as the Hojman term, also known as Holst term) in vacuum.
Damianos Iosifidis, Lucrezia Ravera
openaire   +4 more sources

NATURAL METRIC FOR QUANTUM INFORMATION THEORY [PDF]

open access: yesInternational Journal of Quantum Information, 2009
We study in detail a very natural metric for quantum states. This new proposal has two basic ingredients: entropy and purification. The metric for two mixed states is defined as the square root of the entropy of the average of representative purifications of those states.
Lamberti, Pedro W.   +2 more
openaire   +4 more sources

Home - About - Disclaimer - Privacy