Results 51 to 60 of about 4,829,113 (325)

Einstein and Jordan frame correspondence in quantum cosmology: expansion-collapse duality

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
The conformal correspondence between FLRW universes in the Einstein and Jordan frames allows for an expansion-collapse duality – an always expanding Einstein frame universe can have a dual Jordan frame description that is contracting forever.
Dipayan Mukherjee, Harkirat Singh Sahota
doaj   +1 more source

Geodesic Warps by Conformal Mappings [PDF]

open access: yesInternational Journal of Computer Vision, 2012
In recent years there has been considerable interest in methods for diffeomorphic warping of images, with applications e.g.\ in medical imaging and evolutionary biology. The original work generally cited is that of the evolutionary biologist D'Arcy Wentworth Thompson, who demonstrated warps to deform images of one species into another.
Stephen R. Marsland   +3 more
openaire   +3 more sources

Correlation functions at the bulk point singularity from the gravitational eikonal S-matrix

open access: yesJournal of High Energy Physics, 2019
The bulk point singularity limit of conformal correlation functions in Lorentzian signature acts as a microscope to look into local bulk physics in AdS.
Carlos Cardona
doaj   +1 more source

Confluent conformal blocks of the second kind

open access: yesJournal of High Energy Physics, 2020
We construct confluent conformal blocks of the second kind of the Virasoro algebra. We also construct the Stokes transformations which map such blocks in one Stokes sector to another. In the BPZ limit, we verify explicitly that the constructed blocks and
Jonatan Lenells, Julien Roussillon
doaj   +1 more source

Proposed single-zone map projection system for Turkey

open access: yesReports on Geodesy and Geoinformatics, 2022
The coordinate base of the maps or sheets produced is the Universal Transversal Mercator (UTM) conformal projection, and it is not possible to work in a single coordinate system in Turkey.
Yildirim Faruk, Kadi Fatih
doaj   +1 more source

Genus-zero Whitham hierarchies in conformal-map dynamics [PDF]

open access: yes, 2006
A scheme for solving quasiclassical-string equations is developed to prove that genus-zero hitham hierarchies describe the deformations of planar domains determined by rational conformal-maps. This property is applied in normal matrix models to show that
L. Alonso, E. Medina
semanticscholar   +1 more source

Mapping chromatin conformation [PDF]

open access: yesF1000 Biology Reports, 2010
Chromatin conformation capture (3C) and related techniques have become well-established methods to examine which distal DNA sequences are spatially located close to a locus of interest. Hi-C is a new addition to the growing set of 3C-based techniques that has extended the approach to a genome-wide analysis of nuclear chromatin using high-throughput DNA
openaire   +2 more sources

Universal spinning Casimir equations and their solutions

open access: yesJournal of High Energy Physics, 2023
Conformal blocks are a central analytic tool for higher dimensional conformal field theory. We employ Harish-Chandra’s radial component map to construct universal Casimir differential equations for spinning conformal blocks in any dimension d of ...
Ilija Burić, Volker Schomerus
doaj   +1 more source

The hypersurfaces with conformal normal Gauss map in Hn+1 and S1n+1

open access: yesAnais da Academia Brasileira de Ciências, 2008
In this paper, we introduce the fourth fundamental forms for hypersurfaces in Hn+1 and space-like hypersurfaces in S1n+1, and discuss the conformality of the normal Gauss map of the hypersurfaces in Hn+1 and S1n+1.
Shuguo Shi
doaj   +1 more source

Spherical Density-Equalizing Map for Genus-0 Closed Surfaces [PDF]

open access: yesSIAM Journal of Imaging Sciences
Density-equalizing maps are a class of mapping methods in which the shape deformation is driven by prescribed density information. In recent years, they have been widely used for data visualization on planar domains and planar parameterization of open ...
Zhiyuan Lyu, L. Lui, Gary P. T. Choi
semanticscholar   +1 more source

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