Results 11 to 20 of about 6,360 (266)

Conformal Mapping with as Uniform as Possible Conformal Factor [PDF]

open access: yesSIAM Journal on Imaging Sciences, 2013
According to the uniformization theorem, any surface can be conformally mapped into a domain of a constant Gaussian curvature. The conformal factor indicates the local scaling introduced by such a mapping. This process could be used to compute geometric quantities in a simplified flat domain with zero Gaussian curvature. For example, the computation of
Aflalo, Yonathan   +2 more
openaire   +1 more source

Some results and examples of the biharmonic maps with potential

open access: yesArab Journal of Mathematical Sciences, 2018
In this paper, we will study the class of biharmonic maps with potential, in the particular case represented by conformal maps between equidimensional manifolds. Some examples are constructed in particular cases (Euclidean space and sphere).
Abdelkader Zagane, Seddik Ouakkas
doaj   +1 more source

The optimal conformal projection for pan-European mapping [PDF]

open access: yesGeodetski Vestnik, 2020
There is an increasing need for pan-European spatial datasets, mainly to support the common European Union policies. This has inevitably raised demands for adopting pan-European cartographic projections to visualize the spatial data.
Ivan Nestorov   +2 more
doaj   +1 more source

Conformal Mappings in Relativistic Astrophysics [PDF]

open access: yesJournal of Applied Mathematics, 2013
We describe the use of conformal mappings as a mathematical mechanism to obtain exact solutions of the Einstein field equations in general relativity. The behaviour of the spacetime geometry quantities is given under a conformal transformation, and the Einstein field equations are exhibited for a perfect fluid distribution matter configuration.
S. Hansraj   +2 more
openaire   +4 more sources

Conformal mapping for multiple terminals [PDF]

open access: yesScientific Reports, 2016
AbstractConformal mapping is an important mathematical tool that can be used to solve various physical and engineering problems in many fields, including electrostatics, fluid mechanics, classical mechanics, and transformation optics. It is an accurate and convenient way to solve problems involving two terminals.
Weimin Wang   +3 more
openaire   +4 more sources

A note on surfaces with prescribed oriented Euclidean Gauss map

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
We present another proof of a theorem due to Hoffman and Osserman in Euclidean space concerning the determination of a conformal immersion by its Gauss map.
Ricardo Sa Earp, Eric Toubiana
doaj   +1 more source

Conformal Maps, Biharmonic Maps, and the Warped Product

open access: yesMathematics, 2016
In this paper we study some properties of conformal maps between equidimensional manifolds, we construct new example of non-harmonic biharmonic maps and we characterize the biharmonicity of some maps on the warped product manifolds.
Seddik Ouakkas, Djelloul Djebbouri
doaj   +1 more source

Harmonicity of horizontally conformal maps and spectrum of the Laplacian

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2002
We discuss the harmonicity of horizontally conformal maps and their relations with the spectrum of the Laplacian. We prove that if Φ:M→N is a horizontally conformal map such that the tension field is divergence free, then Φ is harmonic. Furthermore, if N
Gabjin Yun
doaj   +1 more source

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

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

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