Results 11 to 20 of about 31,226 (268)

Univalent harmonic mappings [PDF]

open access: yesCommunications, Faculty Of Science, University of Ankara Series A1Mathematics and Statistics, 1996
Summary: A family of univalent harmonic functions is studied from the point of geometric function theory. This class consists of mappings of the open unit disk onto the entire complex plane except for two infinite slits along the real axis with a normalization at the origin.
Öztürk, Metin, Yamankaradeniz, Mümin
openaire   +4 more sources

Limits of $\alpha$-harmonic maps [PDF]

open access: yesJournal of Differential Geometry, 2020
Critical points of approximations of the Dirichlet energy \`{a} la Sacks-Uhlenbeck are known to converge to harmonic maps in a suitable sense. However, we show that not every harmonic map can be approximated by critical points of such perturbed energies. Indeed, we prove that constant maps and the rotations of $S^2$ are the only critical points of $E_{\
Tobias Lamm   +2 more
openaire   +4 more sources

2D Image Deformation Based on Guaranteed Feature Correspondence and Mesh Mapping

open access: yesIEEE Access, 2019
Image deformation has ubiquitous usage in multimedia applications. It morphs one image into another through a seamless transition. Existing techniques either mainly focus on the correspondence mapping of interior features of the objects in two images ...
Yaqiong Liu   +3 more
doaj   +1 more source

Convergence of Harmonic Maps [PDF]

open access: yesThe Journal of Geometric Analysis, 2015
In this paper we prove a compactness theorem for a sequence of harmonic maps which are defined on a converging sequence of Riemannian manifolds.
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The generalized warped product and the biharmonic maps [PDF]

open access: yesArab Journal of Mathematical Sciences
PurposeIn the first, we consider a smooth map and we calculate the bitension field of the map as a consequence, we treat the biharmonicity of the second projection.
Abderrazak Halimi, Seddik Ouakkas
doaj   +1 more source

Harmonic Mappings of Spheres [PDF]

open access: yesAmerican Journal of Mathematics, 1972
This thesis is addressed to the following fundamental problem: given a homotopy class of maps between compact Riemannian manifolds N and M, is there a harmonic representative of that class? Eells and Sampson have given a general existence theorem for the case that M has no positive sectional curvatures [ESJ.\ud Otherwise, very little is known ...
openaire   +6 more sources

Harmonic Maps and Biharmonic Maps [PDF]

open access: yesSymmetry, 2015
This is a survey on harmonic maps and biharmonic maps into (1) Riemannian manifolds of non-positive curvature, (2) compact Lie groups or (3) compact symmetric spaces, based mainly on my recent works on these topics.
openaire   +1 more source

On the bi-harmonic maps with potential

open access: yesArab Journal of Mathematical Sciences, 2018
In this note we characterize the harmonic maps and biharmonic maps with potential, and we prove that every biharmonic map with potential on a complete manifold satisfying some conditions is a harmonic map with potential.
Ahmed Mohammed Cherif, Mustapha Djaa
doaj   +1 more source

Exponentially Harmonic Maps into Spheres [PDF]

open access: yesAxioms, 2018
We study smooth exponentially harmonic maps from a compact, connected, orientable Riemannian manifold M into a sphere S m ⊂ R m + 1 . Given a codimension two totally geodesic submanifold Σ ⊂ S m , we show that every nonconstant exponentially harmonic map ϕ : M → S m either meets or links Σ . If H 1 ( M , Z )
Sorin Dragomir, Francesco Esposito
openaire   +4 more sources

On the Generalized of p-harmonic Maps

open access: yesInternational Electronic Journal of Geometry, 2022
In this paper, we extend the definition of p-harmonic and p-biharmonic maps between Riemannian manifolds. We present some new properties for the generalized stable p-harmonic maps.
Merdji, Bouchra, Cherif, Ahmed Mohammed
openaire   +4 more sources

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