Results 1 to 10 of about 32,032 (92)

Harmonic Maps into Homogeneous Spaces According to a Darboux Homogeneous Derivative [PDF]

open access: yes, 2015
Our purpose is to use a Darboux homogenous derivative to understand the harmonic maps with values in homogeneous space. We present a characterization of these harmonic maps from the geometry of homogeneous space.
Santana, Alexandre J.   +1 more
core   +1 more source

Cohomological aspects on complex and symplectic manifolds [PDF]

open access: yes, 2016
We discuss how quantitative cohomological informations could provide qualitative properties on complex and symplectic manifolds. In particular we focus on the Bott-Chern and the Aeppli cohomology groups in both cases, since they represent useful tools in
A. Aeppli   +22 more
core   +2 more sources

Complexes of Discrete Distributional Differential Forms and their Homology Theory [PDF]

open access: yes, 2015
Complexes of discrete distributional differential forms are introduced into finite element exterior calculus. Thus we generalize a notion of Braess and Sch\"oberl, originally studied for a posteriori error estimation.
Licht, Martin Werner
core   +1 more source

Skinning maps [PDF]

open access: yes, 2009
Let M be a hyperbolic 3-manifold with nonempty totally geodesic boundary. We prove that there are upper and lower bounds on the diameter of the skinning map of M that depend only on the volume of the hyperbolic structure with totally geodesic boundary ...
Kent Iv, Richard Peabody
core   +1 more source

Spherical Surfaces [PDF]

open access: yes, 2015
We study surfaces of constant positive Gauss curvature in Euclidean 3-space via the harmonicity of the Gauss map. Using the loop group representation, we solve the regular and the singular geometric Cauchy problems for these surfaces, and use these ...
Brander, David
core   +2 more sources

Superrigidity In Infinite Dimension And Finite Rank Via Harmonic Maps

open access: yes, 2012
We prove geometric superrigidity for actions of cocompact lattices in semisimple Lie groups of higher rank on infinite dimensional Riemannian manifolds of nonpositive curvature and finite telescopic ...
Duchesne, Bruno
core   +2 more sources

Curvature and bubble convergence of harmonic maps

open access: yes, 2011
We explore geometric aspects of bubble convergence for harmonic maps. More precisely, we show that the formation of bubbles is characterised by the local excess of curvature on the target manifold. We give a universal estimate for curvature concentration
Kokarev, Gerasim
core   +1 more source

Discrete spherical means of directional derivatives and Veronese maps [PDF]

open access: yes, 2011
We describe and study geometric properties of discrete circular and spherical means of directional derivatives of functions, as well as discrete approximations of higher order differential operators.
Alexander Belyaev   +36 more
core   +2 more sources

Pseudospherical surfaces with singularities [PDF]

open access: yes, 2016
We study a generalization of constant Gauss curvature -1 surfaces in Euclidean 3-space, based on Lorentzian harmonic maps, that we call pseudospherical frontals.
Brander, David
core   +2 more sources

Curvature as a Measure of the Thermodynamic Interaction

open access: yes, 2010
We present a systematic and consistent construction of geometrothermodynamics by using Riemannian contact geometry for the phase manifold and harmonic maps for the equilibrium manifold. We present several metrics for the phase manifold that are invariant
Quevedo, Hernando   +3 more
core   +1 more source

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