Results 31 to 40 of about 92,154 (185)

Worldsheet boundary conditions in Poisson-Lie T-duality [PDF]

open access: yes, 2006
We apply canonical Poisson-Lie T-duality transformations to bosonic open string worldsheet boundary conditions, showing that the form of these conditions is invariant at the classical level, and therefore they are compatible with Poisson-Lie T-duality ...
C. Albertsson   +13 more
core   +5 more sources

On Riemannian manifolds endowed with a locally conformal cosymplectic structure

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
We deal with a locally conformal cosymplectic manifold M(φ,Ω,ξ,η,g) admitting a conformal contact quasi-torse-forming vector field T. The presymplectic 2-form Ω is a locally conformal cosymplectic 2-form.
Ion Mihai   +2 more
doaj   +1 more source

How round is a protein? Exploring protein structures for globularity using conformal mapping.

open access: yesFrontiers in Molecular Biosciences, 2014
We present a new algorithm that automatically computes a measure of the geometric difference between the surface of a protein and a round sphere. The algorithm takes as input two triangulated genus zero surfaces representing the protein and the round ...
Joel eHass, Patrice eKoehl
doaj   +1 more source

A factorization of a super-conformal map

open access: yes, 2015
A super-conformal map and a minimal surface are factored into a product of two maps by modeling the Euclidean four-space and the complex Euclidean plane on the set of all quaternions. One of these two maps is a holomorphic map or a meromorphic map. These
B. Rouxel   +21 more
core   +1 more source

Approximation of conformal mappings using conformally equivalent triangular lattices [PDF]

open access: yes, 2015
Consider discrete conformal maps defined on the basis of two conformally equivalent triangle meshes, that is edge lengths are related by scale factors associated to the vertices.
AI Bobenko   +12 more
core   +2 more sources

Rigidity Characterizations of Conformal Solitons

open access: yesMathematics
We study the rigidity of conformal solitons, give a sufficient and necessary condition that guarantees that every closed conformal soliton is gradient conformal soliton, and prove that complete conformal solitons with a nonpositive Ricci curvature must ...
Junsheng Gong, Jiancheng Liu
doaj   +1 more source

New examples of surfaces in H³ with conformal normal Gauss map

open access: yesAnais da Academia Brasileira de Ciências, 2006
In this paper we give some examples of surfaces in H³ with conformal normal Gauss map with respect to the second conformal structure and prove some global properties.Neste trabalho, damos alguns exemplos de superfícies no espaço hiperbólico de dimensão ...
Shuguo Shi
doaj   +1 more source

Laplacian transfer across a rough interface: Numerical resolution in the conformal plane

open access: yes, 2005
We use a conformal mapping technique to study the Laplacian transfer across a rough interface. Natural Dirichlet or Von Neumann boundary condition are simply read by the conformal map.
Damien Vandembroucq   +9 more
core   +2 more sources

Debye Potentials for Maxwell and Dirac Fields from a Generalisation of the Killing-Yano Equation [PDF]

open access: yes, 1996
By using conformal Killing-Yano tensors, and their generalisations, we obtain scalar potentials for both the source-free Maxwell and massless Dirac equations.
Goldberg J.   +4 more
core   +2 more sources

Scalar Invariants of surfaces in conformal 3-sphere via Minkowski spacetime

open access: yes, 2016
For a surface in 3-sphere, by identifying the conformal round 3-sphere as the projectivized positive light cone in Minkowski 5-spacetime, we use the conformal Gauss map and the conformal transform to construct the associate homogeneous 4-surface in ...
Qing, Jie   +2 more
core   +1 more source

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