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We find upper and lower bounds for the first eigenvalue and the volume entropy of a noncompact real analytic K\"ahler manifold, in terms of Calabi's diastasis function and diastatic entropy, which are sharp in the case of the complex…

Differential Geometry · Mathematics 2015-02-04 Roberto Mossa

We describe the asymptotic behavior of minimal area submanifolds in product spacetimes of an asymptotically hyperbolic space times a compact internal manifold. In particular, we find that unlike the case of a minimal area submanifold just…

High Energy Physics - Theory · Physics 2015-06-18 C. Robin Graham , Andreas Karch

Let M be a 3-manifold (possibly with boundary). We show that, for any positive integer g, there exists an open nonempty set of metrics on M for each of which there are stable compact embedded minimal surfaces of genus g with arbitrarily…

Differential Geometry · Mathematics 2007-05-23 Brian Dean

It is classically known that closed geodesics on a compact Riemann surface with a metric of negative curvature strictly minimize length in their free homotopy class. We'd like to generalize this to Lagrangian submanifolds in K\"ahler…

Differential Geometry · Mathematics 2007-05-23 Edward Goldstein

We derive a sharp upper bound for the first eigenvalue $\lambda_{1,p}$ of the $p$-Laplacian on asymptotically hyperbolic manifolds for $1<p<\infty$. We then prove that a particular class of conformally compact submanifolds within…

Differential Geometry · Mathematics 2024-09-04 Samuel Pérez-Ayala , Aaron J. Tyrrell

In the vein of Bonfert-Taylor, Bridgeman, Canary, and Taylor we introduce the notion of quasiconformal homogeneity for closed oriented hyperbolic surfaces restricted to subgroups of the mapping class group. We find uniform lower bounds for…

Geometric Topology · Mathematics 2024-03-11 Nicholas G. Vlamis

Quantum black holes within the loop quantum gravity (LQG) framework are considered. The number of microscopic states that are consistent with a black hole of a given horizon area $A_0$ are counted and the statistical entropy, as a function…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Alejandro Corichi , Jacobo Diaz-Polo , Enrique Fernandez-Borja

We classify homogeneous CR submanifolds in complex hyperbolic spaces arising as orbits of a subgroup of the solvable part of the Iwasawa decomposition of the isometry group of the ambient space.

Differential Geometry · Mathematics 2020-10-07 Jose Carlos Diaz-Ramos , Miguel Dominguez-Vazquez , Olga Perez-Barral

This article introduces a universal moduli space for the set whose archetypal element is a pair that consists of a metric and second fundamental form from a compact, oriented, positive genus minimal surface in some hyperbolic 3-manifold.…

Geometric Topology · Mathematics 2007-05-23 Clifford Henry Taubes

We consider a hyperbolic surface bundle over the circle with the smallest known volume among hyperbolic manifolds having 3 cusps, so called "the magic manifold". We compute the entropy function on the fiber face of the unit ball with…

Geometric Topology · Mathematics 2010-06-16 Eiko Kin , Mitsuhiko Takasawa

We find an upper bound for the entropy of a systolically extremal surface, in terms of its systole. We combine the upper bound with A. Katok's lower bound in terms of the volume, to obtain a simpler alternative proof of M. Gromov's…

Differential Geometry · Mathematics 2007-05-23 Mikhail G. Katz , Stephane Sabourau

In this article we prove that all boundary points of a minimal oriented hypersurface in a Riemannian manifold are regular, that is, in a neighborhood of any boundary point, the minimal surface is a $\mathcal{C}^{1, \frac14}$ submanifold…

Analysis of PDEs · Mathematics 2020-05-12 Simone Steinbruechel

In this paper we study the regularized analytic torsion of finite volume hyperbolic manifolds. We consider sequences of coverings $X_i$ of a fixed hyperbolic orbifold $X_0$. Our main result is that for certain sequences of coverings and…

Spectral Theory · Mathematics 2013-07-19 Werner Mueller , Jonathan Pfaff

In recent years it has been recognized that the hyperbolic numbers (an extension of complex numbers, defined as z=x+h*y with h*h=1 and x,y real numbers) can be associated to space-time geometry as stated by the Lorentz transformations of…

Mathematical Physics · Physics 2009-11-11 Francesco Catoni , Roberto Cannata , Vincenzo Catoni , Paolo Zampetti

Volume is a natural measure of complexity of a Riemannian manifold. In this survey, we discuss the results and conjectures concerning n-dimensional hyperbolic manifolds and orbifolds of small volume.

Metric Geometry · Mathematics 2014-06-16 Mikhail Belolipetsky

In the article, we generalize some recent results of Colding and Minicozzi on generic singularities of mean curvature flow to curved ambient spaces. To do so, we make use of a weighted monotonicity formula to derive an "almost monotonicity"…

Differential Geometry · Mathematics 2017-07-04 Alexander Mramor

The Ryu-Takayanagi prescription reduces the problem of calculating entanglement entropy in CFTs to the determination of minimal surfaces in a dual anti-de Sitter geometry. For 3D gravity theories and BTZ black holes, we identify the minimal…

High Energy Physics - Theory · Physics 2017-09-19 I. Bakhmatov , N. S. Deger , J. Gutowski , E. Ó Colgáin , H. Yavartanoo

The purpose of this paper is to investigate the Cahn-Hillard approximation for entire minimal hypersurfaces in the hyperbolic space. Combining comparison principles with minimization and blow-up arguments, we prove existence results for…

Analysis of PDEs · Mathematics 2010-02-11 Adriano Pisante , Marcello Ponsiglione

We employ Chen's conformal invariant quantity [8, Theorem 1] in combination with the Chern-Gauss-Bonnet formulas to obtain expressions for the renormalized area of asymptotically minimal hypersurfaces in the $(2n+1)$-dimensional hyperbolic…

Differential Geometry · Mathematics 2026-03-17 Alvaro Pampano

We establish a general formula for the enclosed volume of constant mean curvature (CMC) surfaces in Euclidean three space with translational periods forming a lattice. The formula relates the volume to the surface area, a…

Differential Geometry · Mathematics 2026-01-22 Lynn Heller , Sebastian Heller , Martin Traizet
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