Results 1 to 10 of about 127 (22)

The Ricci iteration and its applications [PDF]

open access: yes, 2007
In this Note we introduce and study dynamical systems related to the Ricci operator on the space of Kahler metrics as discretizations of certain geometric flows.
Rubinstein, Yanir A.
core   +3 more sources

On the bifurcation of solutions of the Yamabe problem in product manifolds with minimal boundary

open access: yesAdvances in Nonlinear Analysis, 2018
In this paper, we study the multiplicity of solutions of the Yamabe problem on product manifolds with minimal boundary via bifurcation theory.
Cárdenas Diaz Elkin Dario   +1 more
doaj   +1 more source

Bipolar Lawson Tau-Surfaces and Generalized Lawson Tau-Surfaces [PDF]

open access: yes, 2016
Recently Penskoi [J. Geom. Anal. 25 (2015), 2645-2666, arXiv:1308.1628] generalized the well known two-parametric family of Lawson tau-surfaces $\tau_{r,m}$ minimally immersed in spheres to a three-parametric family $T_{a,b,c}$ of tori and Klein bottles ...
Causley, Broderick
core   +3 more sources

Bounding the eigenvalues of the Laplace-Beltrami operator on compact submanifolds [PDF]

open access: yes, 2009
We give upper bounds for the eigenvalues of the La-place-Beltrami operator of a compact $m$-dimensional submanifold $M$ of $\R^{m+p}$. Besides the dimension and the volume of the submanifold and the order of the eigenvalue, these bounds depend on either ...
Colbois, Bruno   +2 more
core   +6 more sources

Local extremality of the Calabi-Croke sphere for the length of the shortest closed geodesic [PDF]

open access: yes, 2009
Recently, F. Balacheff proved that the Calabi-Croke sphere made of two flat 1-unit-side equilateral triangles glued along their boundaries is a local extremum for the length of the shortest closed geodesic among the Riemannian spheres with conical ...
Sabourau, Stephane
core   +4 more sources

Extremal Eigenvalues of the Laplacian on Euclidean domains and closed surfaces [PDF]

open access: yes, 2014
We investigate properties of the sequences of extremal values that could be achieved by the eigenvalues of the Laplacian on Euclidean domains of unit volume, under Dirichlet and Neumann boundary conditions, respectively.
Ahmad, Bruno Colbois, El Soufi
core   +6 more sources

Bifurcation of periodic solutions to the singular Yamabe problem on spheres [PDF]

open access: yes, 2015
We obtain uncountably many periodic solutions to the singular Yamabe problem on a round sphere, that blow up along a great circle. These are (complete) constant scalar curvature metrics on the complement of $S^1$ inside $S^m$, $m\geq 5$, that are ...
Bettiol, Renato G.   +2 more
core   +1 more source

On the Critical Points of the E_k Functionals in Kahler Geometry

open access: yes, 2006
We prove that a Kahler metric in the anticanonical class which is a critical point of the functional E_k and has nonnegative Ricci curvature, is necessarily Kahler-Einstein.
Tosatti, Valentino
core   +1 more source

Generalized Lawson tori and Klein bottles [PDF]

open access: yes, 2013
Using Takahashi theorem we propose an approach to extend known families of minimal tori in spheres. As an example, the well-known two-parametric family of Lawson tau-surfaces including tori and Klein bottles is extended to a three-parametric family of ...
Penskoi, Alexei V.
core   +1 more source

Non-maximality of known extremal metrics on torus and Klein bottle

open access: yes, 2013
El Soufi-Ilias' theorem establishes a connection between minimal submanifolds of spheres and extremal metrics for eigenvalues of the Laplace-Beltrami operator.
Karpukhin, Mikhail A.
core   +1 more source

Home - About - Disclaimer - Privacy