Results 21 to 30 of about 70,935 (267)

Inequalities on Generalized Sasakian Space Forms

open access: yesJournal of Function Spaces, 2021
In this paper, we find the second variational formula for a generalized Sasakian space form admitting a semisymmetric metric connection. Inequalities regarding the stability criteria of a compact generalized Sasakian space form admitting a semisymmetric ...
Najma Abdul Rehman   +4 more
doaj   +1 more source

On Almost Norden Statistical Manifolds

open access: yesEntropy, 2022
We consider a statistical connection ∇ on an almost complex manifold with (pseudo-) Riemannian metric, in particular the Norden metric. We investigate almost Norden (statistical) manifolds under the condition that the almost complex structure J is ...
Leila Samereh   +2 more
doaj   +1 more source

A note on the metric and edge metric dimensions of 2-connected graphs [PDF]

open access: yesDiscrete Applied Mathematics, 2022
12 ...
Martin Knor   +2 more
openaire   +3 more sources

A Note on Locally Metric Connections [PDF]

open access: yesMathematics and Statistics, 2019
In this paper we give necessary and sufficient conditions for a connection in a plane bundle above a surface to be locally metric. These conditions are easy to be verified in any local chart. Also as a global result we give a necessary condition for two connections to be metric equivalent in terms of their Euler class.
openaire   +2 more sources

The Geodesics of Metric Connections with Vectorial Torsion [PDF]

open access: yesAnnals of Global Analysis and Geometry, 2004
The present note deals with the dynamics of metric connections with vectorial torsion, as already described by E. Cartan in 1925. We show that the geodesics of metric connections with vectorial torsion defined by gradient vector fields coincide with the Levi-Civita geodesics of a conformally equivalent metric.
Agricola, Ilka, Thier, Christian
openaire   +2 more sources

Connections with parallel skew-symmetric torsion on sub-Riemannian manifolds

open access: yesДифференциальная геометрия многообразий фигур, 2020
On a sub-Riemannian manifold M of contact type, is considered an N-connection defined by the pair (, N), where is an interior metric connection, is an endomorphism of the distribution D.
S. Galaev
doaj   +1 more source

(In)equivalence of metric-affine and metric effective field theories

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
In a geometrical approach to gravity the metric and the (gravitational) connection can be independent and one deals with metric-affine theories. We construct the most general action of metric-affine effective field theories, including a generic matter ...
Gianfranco Pradisi, Alberto Salvio
doaj   +1 more source

Hermitian metrics with (anti-)self-dual Riemann tensor [PDF]

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2021
Equations of (anti-)self-duality for the components of the LeviCivita connection of the Hermitian positive definite metric (not for the Riemann tensor) are compiled.
Leonid Krivonosov, Vyacheslav Luk'yanov
doaj   +1 more source

The Universal Connection and Metrics on Moduli Spaces [PDF]

open access: yesCommunications in Mathematical Physics, 2004
We introduce a class of metrics on gauge theoretic moduli spaces. These metrics are made out of the universal matrix that appears in the universal connection construction of M. S. Narasimhan and S. Ramanan. As an example we construct metrics on the c_{2}=1 SU(2) moduli space of instantons on R^4 for various universal matrices.
Massamba, Fortuné, Thompson, George
openaire   +2 more sources

CER/TER - The New Metric for TCP Connection Robustness Evaluation and Comparison

open access: yesAdvances in Electrical and Electronic Engineering, 2015
This article presents new metric for TCP connection robustness evaluation and comparison. This metric is focused on TCP connection and transmission continuity rather then on maximal throughput or minimal RTT.
Ondrej Vondrous   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy