Results 41 to 50 of about 17,624 (148)

Holographic entanglement entropy of the Coulomb branch

open access: yesJournal of High Energy Physics, 2021
We compute entanglement entropy (EE) of a spherical region in (3 + 1)-dimensional N $$ \mathcal{N} $$ = 4 supersymmetric SU(N) Yang-Mills theory in states described holographically by probe D3-branes in AdS 5 × S 5.
Adam Chalabi   +5 more
doaj   +1 more source

Spherical Covariance Representations

open access: yes
Covariance representations are developed for the uniform distributions on the Euclidean spheres in terms of spherical gradients and Hessians. They are applied to derive a number of Sobolev type inequalities and to recover and refine the concentration of measure phenomenon, including second order concentration inequalities.
Bobkov, Sergey G., Duggal, Devraj
openaire   +3 more sources

Spherical representations of C*-flows, I

open access: yes, 2020
We propose an abstract framework of a kind of representation theory for $C^*$-flows, i.e., $C^*$-algebras equipped with one-parameter automorphism groups, as a proper generalization of Olshanski's formalism of unitary representation theory for infinite-dimensional groups such as the infinite-dimensional unitary group $\mathrm{U}(\infty)$.
openaire   +3 more sources

SPIDER: A framework for processing, editing and presenting immersive high-resolution spherical indoor scenes

open access: yesGraphical Models, 2023
Today’s Extended Reality (XR) applications that call for specific Diminished Reality (DR) strategies to hide specific classes of objects are increasingly using 360° cameras, which can capture entire areas in a single picture.
M. Tukur   +4 more
doaj   +1 more source

Discrete mixture representations of spherical distributions

open access: yesStatistical Papers, 2023
AbstractWe obtain discrete mixture representations for parametric families of probability distributions on Euclidean spheres, such as the von Mises–Fisher, the Watson and the angular Gaussian families. In addition to several special results we present a general approach to isotropic distribution families that is based on density expansions in terms of ...
Ludwig Baringhaus, Rudolf Grübel
openaire   +5 more sources

Spherical k-Means Clustering

open access: yesJournal of Statistical Software, 2012
Clustering text documents is a fundamental task in modern data analysis, requiring approaches which perform well both in terms of solution quality and computational efficiency.
Kurt Hornik   +3 more
doaj  

On the signature of certain spherical representations [PDF]

open access: yesPacific Journal of Mathematics, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Dark refraction shift with allowance for astigmatism

open access: yesAfrican Vision and Eye Health, 2005
Purpose: To show that the dark refraction shift (dark focus) is a more complicated phenomenon than implied when presented as spherical. Methods: Fifty autorefractor measurements of refractive state of the right eye were obtained in light  and  dark ...
W.D.H. Gillan
doaj   +1 more source

Comparative evaluation of interpolation methods for the directivity of musical instruments

open access: yesEURASIP Journal on Audio, Speech, and Music Processing, 2021
Measurements of the directivity of acoustic sound sources must be interpolated in almost all cases, either for spatial upsampling to higher resolution representations of the data, for spatial resampling to another sampling grid, or for use in simulations
David Ackermann   +4 more
doaj   +1 more source

Real Harmonic Analysis on the Special Orthogonal Group

open access: yesInternational Journal of Analysis and Applications, 2022
This paper presents theoretical analysis and software implementation for real harmonics analysis on the special orthogonal group. Noncommutative harmonic analysis for complex-valued functions on the special orthogonal group has been studied extensively ...
Taeyoung Lee
doaj   +1 more source

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