Results 11 to 20 of about 104,736 (267)

Global Geometry of Bayesian Statistics

open access: yesEntropy, 2020
In the previous work of the author, a non-trivial symmetry of the relative entropy in the information geometry of normal distributions was discovered. The same symmetry also appears in the symplectic/contact geometry of Hilbert modular cusps. Further, it
Atsuhide Mori
doaj   +1 more source

Topologically protected optical signal processing using parity–time-symmetric oscillation quenching

open access: yesNanophotonics, 2021
The concept of topology is universally observed in various physical objects when the objects can be described by geometric structures. Although a representative example is the knotted geometry of wavefunctions in reciprocal space for quantum Hall family ...
Yu Sunkyu, Piao Xianji, Park Namkyoo
doaj   +1 more source

Metric-Affine Geometries with Spherical Symmetry [PDF]

open access: yesSymmetry, 2020
We provide a comprehensive overview of metric-affine geometries with spherical symmetry, which may be used in order to solve the field equations for generic gravity theories which employ these geometries as their field variables. We discuss the most general class of such geometries, which we display both in the metric-Palatini formulation and in the ...
openaire   +2 more sources

Trineodymium(III) pentairon(III) dodecaoxide, Nd3Fe5O12

open access: yesActa Crystallographica Section E, 2009
The title compound, Nd3Fe5O12 (NdIG), has an iron garnet structure. One of the Fe atoms is coordinated by six O atoms in a slightly distorted octahedral geometry and has overline{3} site symmetry.
Takashi Komori   +4 more
doaj   +1 more source

Symmetry breaking via internal geometry

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
Gauge theories commonly employ complex vector-valued fields to reduce symmetry groups through the Higgs mechanism of spontaneous symmetry breaking.
Andrew Talmadge
doaj   +1 more source

Symmetry in Complex Contact Manifolds

open access: yesHittite Journal of Science and Engineering, 2017
W ,κ µ-spaces with κ< are locally -symmetric.e define complex locally -symmetric spaces.
Belgin Korkmaz
doaj   +1 more source

Symmetry breaking in geometry

open access: yes, 2022
17 pages, 3 ...
Fuchs, Andreas   +2 more
openaire   +2 more sources

A deformed IR: a new IR fixed point for four-dimensional holographic theories

open access: yesJournal of High Energy Physics, 2023
In holography, the IR behavior of a quantum system at nonzero density is described by the near horizon geometry of an extremal charged black hole. It is commonly believed that for systems on S 3, this near horizon geometry is AdS2 × S 3.
Gary T. Horowitz   +2 more
doaj   +1 more source

Lie-Poisson gauge theories and κ-Minkowski electrodynamics

open access: yesJournal of High Energy Physics, 2023
We consider gauge theories on Poisson manifolds emerging as semiclassical approximations of noncommutative spacetime with Lie algebra type noncommutativity.
V. G. Kupriyanov   +2 more
doaj   +1 more source

Symmetries of distributional domain wall geometries [PDF]

open access: yesJournal of Mathematical Physics, 2005
Generalizing the Lie derivative of smooth tensor fields to distribution-valued tensors, we examine the Killing symmetries and the collineations of the curvature tensors of some distributional domain wall geometries. The chosen geometries are rigorously the distributional thin wall limit of self-gravitating scalar field configurations representing thick
Pantoja, Nelson, Sanoja, Alberto
openaire   +2 more sources

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