Results 21 to 30 of about 682,080 (270)

Curvature Invariants of Statistical Submanifolds in Kenmotsu Statistical Manifolds of Constant ϕ-Sectional Curvature

open access: yesEntropy, 2018
In this article, we consider statistical submanifolds of Kenmotsu statistical manifolds of constant ϕ-sectional curvature. For such submanifold, we investigate curvature properties. We establish some inequalities involving the normalized δ-Casorati
Simona Decu   +3 more
doaj   +1 more source

Primal-Dual Algorithms for Connected Facility Location Problems [PDF]

open access: yesAlgorithmica, 2002
A Connected Facility Location problem (ConFL) generalizes FL-problems by additionally requiring the connectivity of the open facilities by a Steiner tree \(T\) yielding an extra cost of \(M\times\text{cost}(T)\); here \(M\) is an external factor due to the specific requirements for Steiner edges (f.e. connecting hubs).
Swamy, Chaitanya, Kumar, Amit
openaire   +1 more source

Dual communities in spatial networks

open access: yesNature Communications, 2022
Here the authors introduce dual communities, characterized by strong connections at their boundaries, and show that they are formed as a trade-off between efficiency and resilience in supply networks.
Franz Kaiser   +4 more
doaj   +1 more source

Applications of the Ashtekar gravity to four dimensional hyperk\"ahler geometry and Yang-Mills Instantons [PDF]

open access: yes, 1996
The Ashtekar-Mason-Newman equations are used to construct the hyperk\"ahler metrics on four dimensional manifolds. These equations are closely related to anti self-dual Yang-Mills equations of the infinite dimensional gauge Lie algebras of all volume ...
Gava E.   +7 more
core   +2 more sources

Location of semi-rigid connections effect on the seismic performance of steel frame structures

open access: yesElectronic Journal of Structural Engineering, 2022
In design steel frames, combining semi-rigid and rigid connections can result in better structural performance, particularly in seismic locations. In this study, the effects of semi-rigid beam-to-column connections located on the seismic performance of ...
Emad Elhout
doaj   +3 more sources

F-Geometry and Amari’s α-Geometry on a Statistical Manifold

open access: yesEntropy, 2014
In this paper, we introduce a geometry called F-geometry on a statistical manifold S using an embedding F of S into the space RX of random variables. Amari’s α-geometry is a special case of F-geometry.
Harsha K. V.   +1 more
doaj   +1 more source

Resource Allocation For Reconfigurable Intelligent Surface Assisted Dual Connectivity [PDF]

open access: yesSensors, 2021
<p>The next generation 6G wireless systems are envisioned to have higher reliability and capacity than the existing cellular systems. The reconfigurable intelligent surfaces (RISs) is one of the promising solution to control the wireless channel by altering the electromagnetic properties of the signal. The dual connectivity (DC) increases the per-
Yoghitha Ramamoorthi   +4 more
openaire   +3 more sources

The dual circulation of the lungs and their connections

open access: yesSouth African Journal of Physiotherapy, 1980
The bronchial and pulmonary circulations are outlined and their relevance to certain pathological conditions is conjectured.
L. Bütow
doaj   +1 more source

A note on the minimum‐norm in dual space approach to some classical linear optimal control problems

open access: yesThe Journal of Engineering, 2023
Some classical optimal control problems of linear systems can be characterized as finding minimum‐norm vectors from within linear varieties in appropriate dual spaces.
Yue Zhou, Pushkin Kachroo, Kaan Ozbay
doaj   +1 more source

Natural curvature for manifest T-duality [PDF]

open access: yes, 2014
We reformulate the manifestly T-dual description of the massless sector of the closed bosonic string, directly from the geometry associated with the (left and right) affine Lie algebra of the coset space Poincare/Lorentz.
Polacek, Martin, Siegel, Warren
core   +2 more sources

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