Results 81 to 90 of about 1,643,284 (193)

Recent Developments in the Holographic Description of Quantum Chaos

open access: yesAdvances in High Energy Physics, 2019
We review recent developments encompassing the description of quantum chaos in holography. We discuss the characterization of quantum chaos based on the late time vanishing of out-of-time-order correlators and explain how this is realized in the dual ...
Viktor Jahnke
doaj   +1 more source

Dual connections and affine geometry

open access: yesMathematische Zeitschrift, 1990
Two torsion free affine connections \(\nabla\) and \({\bar \nabla}\) of a pseudo-Riemannian manifold \((M,g)\), \(\dim M=n\) are called dual if \(Xg(Y,Z)=g(\nabla_ XY,Z)+g(Y,{\bar \nabla}_ XZ)\) for any vector fields X, Y, Z. Such an \((M,g,\nabla,{\bar \nabla})\) is called a statistical manifold.
openaire   +1 more source

Duality for Multitime Multiobjective Ratio Variational Problems on First Order Jet Bundle

open access: yesAbstract and Applied Analysis, 2012
We consider a new class of multitime multiobjective variational problems of minimizing a vector of quotients of functionals of curvilinear integral type.
Mihai Postolache
doaj   +1 more source

Using social network analysis to investigate mathematical connections in U.S. and Chinese textbook problems

open access: yesHumanities & Social Sciences Communications
Textbooks, as potentially implemented curricula, play an important role in supporting classroom teaching and learning. Mathematical connections, one of the essential and hot topics advocated in mathematics education, have been emphasized in national ...
Shuhui Li, Lianghuo Fan
doaj   +1 more source

Dirac operators on configuration spaces and Yang-Mills quantum field theory

open access: yesNuclear Physics B
In this paper we discuss a connection between Dirac operators on configuration spaces and Yang-Mills quantum field theory. We first show that the Hamilton operators of the self-dual and anti-self-dual sectors of a Yang-Mills quantum field theory emerge ...
Johannes Aastrup   +1 more
doaj   +1 more source

Community Connections issue: winter 1996 [PDF]

open access: yes, 1996
The winter 1996 issue of Community Connections, which was a quarterly newsletter issued by the Washington County Community Action ...
Washington County Community Action Organization (Or.)
core  

On Dual Hyperbolic Narayana and Narayana-Lucas Hybrid Quaternions

open access: yesUniversal Journal of Mathematics and Applications
In this present communication, we introduce the novel concepts of dual hyperbolic Narayana quaternions and dual hyperbolic Narayana-Lucas quaternions within the framework of hybrid numbers.
Pankaj Kumar, Shilpa Kapoor
doaj   +1 more source

Dual-Failure Distance and Connectivity Oracles [PDF]

open access: yesProceedings of the Twentieth Annual ACM-SIAM Symposium on Discrete Algorithms, 2009
Ran Duan, Seth Pettie
openaire   +1 more source

Community Connections issue: spring 2002 [PDF]

open access: yes, 2002
The spring 2002 issue of Community Connections, which was a quarterly newsletter issued by the Washington County Community Action ...
Washington County Community Action Organization (Or.)
core  

Dynamic Analysis of a Bolted Joint Dual-Rotor System With an Unbalanced Offset Disk Included in the Low-Pressure Rotor

open access: yesShock and Vibration
The dual-rotor structure was usually adopted in aeroengine for the sake of higher efficiency, where the high-pressure (HP) rotor and the low-pressure (LP) rotor are coupled together through an intershaft bearing.
Chuanmei Wen   +4 more
doaj   +1 more source

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