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相关论文: Hyperbolicity of general deformations: proofs

200 篇论文

We study closed geodesics on hyperbolic surfaces, and give bounds for their angles of intersection and self-intersection, and for the sides of the polygons that they form, depending only on the lengths of the geodesics

几何拓扑 · 数学 2019-05-28 Max Neumann-Coto , Peter Scott

We describe several methods to construct minimal foliations by hyperbolic surfaces on closed 3-manifolds, and discuss the properties of the examples thus obtained.

In this paper we study cohomology and deformations of Jacobi-Jordan algebras. We develop their formal deformation theory. In particular, we introduce a method to construct a versal deformation for a given Jacobi-Jordan algebra, which can…

交换代数 · 数学 2022-02-08 Yong Yang

We describe a method of defining a Hermitian metric on Kobayashi hyperbolic manifolds. The metric is distance decreasing under holomorphic mappings, up to a multiplicative constant. This method is distinct from the classical construction of…

复变函数 · 数学 2025-05-22 Debraj Chakrabarti , Prachi Mahajan

Using the method of C. V\"or\"os, we establish results in hyperbolic plane geometry, related to triangles and circles. We present a model independent construction for Malfatti's problem and several trigonometric formulas for triangles.

度量几何 · 数学 2014-10-27 Ákos G. Horváth

We proove an Ahlfors' like inequality for the holomorphic curves of a complex compact Kobayashi hyperbolic manifold.

复变函数 · 数学 2009-01-24 Benoit Saleur

In this article we prove that every entire curve in the complement of a generic hypersurface of degree $d\geq 586$ in $\mathbb{P}_{\mathbb{C}}^{3}$ is algebraically degenerate i.e there exists a proper subvariety which contains the entire…

代数几何 · 数学 2007-05-23 Erwan Rousseau

We prove that every Riemann surface not isomorphic to the Riemann sphere admits an infinitesimal deformation of the complex structure. The proof is based in an investigation of the length of geodesics for the Kobayashi/Poincare metric.

复变函数 · 数学 2014-10-28 Jörg Winkelmann

We study the intrinsic geometry of area minimizing (and also of almost minimizing) hypersurfaces from a new point of view by relating this subject to quasiconformal geometry. For any such hypersurface we define and construct a so-called…

微分几何 · 数学 2018-05-08 Joachim Lohkamp

We present a basic introduction to the theories of M\"obius structures and hyperbolic ends and we study their applications to the theory of $k$-surfaces in $3$-dimensional hyperbolic space.

微分几何 · 数学 2021-04-08 Graham Smith

Using the method of moving frames we analyze the algebra of differential invariants for surfaces in three-dimensional affine geometry. For elliptic, hyperbolic, and parabolic points, we show that if the algebra of differential invariants is…

数学物理 · 物理学 2021-04-15 Örn Arnaldsson , Francis Valiquette

We prove the existence of complete, embedded, constant mean curvature 1 surfaces in 3 dimensional hyperbolic space when g, the genus of the surface, and n, the number of ends of the surface, satisfy either g=0 and $n\geq 1$ or $g \geq 1$…

微分几何 · 数学 2007-05-23 Frank Pacard , Fernando A. A. Pimentel

We construct simply connected, complete, non-$CMC$ biconservative surfaces in the $3$-dimensional hyperbolic space $\mathbb{H}^3$ in an intrinsic and extrinsic way. We obtain three families of such surfaces, and, for each surface, the set…

微分几何 · 数学 2019-09-30 Simona Nistor , Cezar Oniciuc

Surfaces of general type with positive second Segre number $s_2:=c_1^2-c_2>0$ are known by results of Bogomolov to be quasi-hyperbolic i.e. with finitely many rational and elliptic curves. These results were extended by McQuillan in his…

代数几何 · 数学 2014-02-26 Xavier Roulleau , Erwan Rousseau

We construct a hyperbolic three-manifold with trivial finite type invariants up to a given degree.

几何拓扑 · 数学 2007-05-23 Hitoshi Murakami

We prove that a curve of degree $dk$ on a very general surface of degree $d \geq 5$ in $\mathbb{P}^3$ has geometric genus at least $\frac{dk(d-5)+k}{2} + 1$. This improves bounds given by G. Xu. As a corollary, we conclude that the very…

代数几何 · 数学 2018-04-12 Izzet Coskun , Eric Riedl

In this paper, we establish the existence of solutions for a particular class of degenerate hyperbolic equations. Following this, we approximate these degenerate equations by employing a sequence of uniformly hyperbolic equations. Notably,…

最优化与控制 · 数学 2026-05-12 Dong-Hui Yang , Bao-Zhu Guo

We discuss several topics related to the notion of strong hyperbolicity which are of interest in general relativity. After introducing the concept and showing its relevance we provide some covariant definitions of strong hyperbolicity. We…

广义相对论与量子宇宙学 · 物理学 2017-08-07 Oscar Reula

We study infinitesimal conformal deformations of a triangulated surface in Euclidean space and investigate the change in its extrinsic geometry. A deformation of vertices is conformal if it preserves length cross-ratios. On one hand,…

度量几何 · 数学 2018-04-19 Wai Yeung Lam , Ulrich Pinkall

We first give a sufficient condition, issued from pluripotential theory, for an unbounded domain in the complex Euclidean space $\mathbb C^n$ to be Kobayashi hyperbolic. Then, we construct an example of a rigid pseudoconvex domain in…

复变函数 · 数学 2020-05-08 Hervé Gaussier , Nikolay Shcherbina