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The paper is a contribution to the conjecture of Kobayashi that the complement of a generic curve in the projective plane is hyperbolic, provided the degree is at least five. Previously the authors treated the cases of two quadrics and a…

alg-geom · Mathematics 2014-12-01 Gerd Dethloff , Georg Schumacher , Pit-Mann Wong

We construct two classes of singular Kobayashi hyperbolic surfaces in $P^3$. The first consists of generic projections of the cartesian square $V = C \times C$ of a generic genus $g \ge 2$ curve $C$ smoothly embedded in $P^5$. These…

Algebraic Geometry · Mathematics 2007-05-23 Bernard Shiffman , Mikhail Zaidenberg

This is a recent conference report on the Kobayashi Problem on hyperbolicity of generic projective hypersurfaces. As an appendix, a (non-updated) author's survey article of 1992 on the same subject, published in an edition with a limited…

Algebraic Geometry · Mathematics 2007-05-23 Mikhail Zaidenberg

The main goal of this work is to prove that a very generic surface of degree at least 21 in complex projective 3-dimensional space is hyperbolic in the sense of Kobayashi. This means that every entire holomorphic map $f:{\Bbb C} \to X$ to…

Algebraic Geometry · Mathematics 2007-05-23 Jean-Pierre Demailly , Jawher El Goul

The paper is a contribution of the conjecture of Kobayashi that the complement of a generic plain curve of degree at least five is hyperbolic. The main result is that the complement of a generic configuration of three quadrics is hyperbolic…

alg-geom · Mathematics 2014-12-01 Gerd Dethloff , Georg Schumacher , Pit-Mann Wong

We describe a new method of constructing Kobayashi-hyperbolic surfaces in complex projective 3-space based on deforming surfaces with a "hyperbolic non-percolation" property. We use this method to show that general small deformations of…

Algebraic Geometry · Mathematics 2007-05-23 Bernard Shiffman , Mikhail Zaidenberg

We modify the deformation method explored previously in a joint work of B. Shiffman and the author, in order to construct further examples of Kobayashi hyperbolic surfaces in the projective 3-space of any even degree starting with degree 8.

Algebraic Geometry · Mathematics 2009-10-19 Mikhail Zaidenberg

Algebraic hyperbolicity serves as a bridge between differential geometry and algebraic geometry. Generally, it is difficult to show that a given projective variety is algebraically hyperbolic. However, it was established recently that a…

Algebraic Geometry · Mathematics 2024-10-01 Sharon Robins

In 1970, Kobayashi conjectured that general hypersurfaces of sufficiently large degree in $P^n$ are hyperbolic. In this paper we prove that a general sufficiently ample hypersurface in a smooth projective variety is hyperbolic. To prove…

Algebraic Geometry · Mathematics 2016-07-04 Damian Brotbek

We present two methods of constructing low degree Kobayashi hyperbolic hypersurfaces in the projective space: the projection method and the deformation method. The talk is based on joint works of the speaker with B. Shiffman and C.…

Algebraic Geometry · Mathematics 2007-11-21 Mikhail Zaidenberg

Oka manifolds can be viewed as the "opposite" of Kobayashi hyperbolic manifolds. Kobayashi asked whether the complement in projective space of a generic hypersurface of sufficiently high degree is hyperbolic. Therefore it is natural to…

Complex Variables · Mathematics 2012-04-20 Alexander Hanysz

In this paper we determine all Kobayashi-hyperbolic 2-dimensional complex manifolds for which the group of holomorphic automorphisms has dimension 3. This work concludes a recent series of papers by the author on the classification of…

Complex Variables · Mathematics 2014-11-11 A. V. Isaev

Recall that the moduli space of smooth (that is, stable) cubic curves is isomorphic to the quotient of the upper half plane by the group of fractional linear transformations with integer coefficients. We establish a similar result for…

Algebraic Geometry · Mathematics 2007-05-23 Daniel Allcock , James A. Carlson , Domingo Toledo

We classify all real hypersurfaces with three distinct constant principal curvatures in complex hyperbolic spaces of dimension greater than two.

Differential Geometry · Mathematics 2007-05-23 Jurgen Berndt , Jose Carlos Diaz-Ramos

We show that a general small deformation of the union of two general cones in P3 of degree >= 4 is Kobayashi hyperbolic. Hence we obtain new examples of hyperbolic surfaces in P3 of any given degree d>= 8.

Algebraic Geometry · Mathematics 2007-11-13 Bernard Shiffman , Mikhail Zaidenberg

For any H in [0,1), we construct complete, non-proper, stable, simply-connected surfaces with constant mean curvature H embedded in hyperbolic 3-space.

Differential Geometry · Mathematics 2017-03-07 Baris Coskunuzer , William H. Meeks , Giuseppe Tinaglia

Generalizing both hyperbolic framed surfaces and one-parameter families of hyperbolic framed curves, we introduce the concept of hyperbolic generalized framed surfaces and establish their relations in hyperbolic 3-space. We provide the…

Differential Geometry · Mathematics 2026-02-03 Donghe Pei , Masatomo Takahashi , Anjie Zhou

We construct families of hyperbolic hypersurfaces of degree $2n$ in the projective space $\mathbb{P}^n(\mathbb{C})$ for $3 \leq n \leq 6$.

Complex Variables · Mathematics 2015-12-31 Dinh Tuan Huynh

We compute and analyse the moduli space of those real projective structures on a hyperbolic 3-orbifold that are modelled on a single ideal tetrahedron in projective space. Parameterisations are given in terms of classical invariants,…

Geometric Topology · Mathematics 2021-01-06 Joan Porti , Stephan Tillmann

A projective manifold $M$ is algebraically hyperbolic if there exists a positive constant $A$ such that the degree of any curve of genus $g$ on $M$ is bounded from above by $A(g-1)$. A classical result is that Kobayashi hyperbolicity…

Algebraic Geometry · Mathematics 2021-09-20 Fedor Bogomolov , Ljudmila Kamenova , Misha Verbitsky
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