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Related papers: Finiteness results for hyperbolic orbifold pairs

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Kobayashi-Ochiai proved that the set of dominant maps from a fixed variety to a fixed variety of general type is finite. We prove the natural extension of their finiteness theorem to Campana's orbifold pairs.

Algebraic Geometry · Mathematics 2023-08-03 Finn Bartsch , Ariyan Javanpeykar

We establish a finiteness result for pointed maps to the base space $U$ of a smooth projective family of varieties with maximal variation in moduli. For its proof, we establish the rigidity of pointed maps to a (not necessarily compact)…

Algebraic Geometry · Mathematics 2025-06-19 Ariyan Javanpeykar , Steven Lu , Ruiran Sun , Kang Zuo

We prove that the space of dominant/non-constant holomorphic mappings from a product of hyperbolic Riemann surfaces of finite type into certain hyperbolic manifolds with universal cover a bounded domain is a finite set.

Complex Variables · Mathematics 2017-01-23 Divakaran Divakaran , Jaikrishnan Janardhanan

Motivated by Lang-Vojta's conjecture, we show that the set of dominant rational self-maps of an algebraic variety over a number field with only finitely many rational points in any given number field is finite by combining Amerik's theorem…

Algebraic Geometry · Mathematics 2020-06-17 Ariyan Javanpeykar , Junyi Xie

Motivated by the intermediate Lang conjectures on hyperbolicity and rational points, we prove new finiteness results for non-constant morphisms from a fixed variety to a fixed variety defined over a number field by applying Faltings's…

Number Theory · Mathematics 2021-12-22 Ariyan Javanpeykar

The isometry group of a compact n-dimensional hyperbolic manifold is known to be finite. We show that for every n > 2, every finite group is realized as the full isometry group of some compact hyperbolic n-manifold. The cases n = 2 and n =…

Group Theory · Mathematics 2009-11-10 M. Belolipetsky , A. Lubotzky

In response to a question raised by Belolipetsky and the first author, we prove that for every finite group $G$ there are infinitely many isomorphism classes of compact complex hyperbolic $2$-manifolds with automorphism group isomorphic to…

Geometric Topology · Mathematics 2025-12-23 Alexander Lubotzky , Matthew Stover

We study fixed point sets for holomorphic automorphisms (and endomorphisms) on complex manifolds. The main object of our interest is to determine the number and configuration of fixed points that forces an automorphism (endomorphism) to be…

Complex Variables · Mathematics 2007-05-23 Buma L. Fridman , Daowei Ma , Jean-Pierre Vigue

We prove that if $X = X_1 \times \dots \times X_n$ is a product of hyperbolic Riemann surfaces of finite type and $Y = \Omega/\Gamma$ is a complex manifold, where $\Omega$ is a bounded simply-connected domain in $\mathbb{C}^m$, then the…

Complex Variables · Mathematics 2016-12-19 Divakaran Divakaran , Jaikrishnan Janardhanan

We prove that every family of isospectral surfaces with discrete length spectrum arising from Sunada's method is finite. Furthermore, by introducing the topological notion of surfaces with self-duplicating ends, we show that every finite…

Geometric Topology · Mathematics 2026-02-24 Federica Fanoni , David Fisac

We investigate the size of fixed point sets of automorphisms of bounded domains in $\mathbb{C}^n$. In one complex variable, a nontrivial automorphism has at most two fixed points, but in higher dimensions fixed point sets need not be…

Complex Variables · Mathematics 2026-04-10 Bharathi Thiruvengadam , Jaikrishnan Janardhanan

We prove a result on the structure of finite proper holomorphic mappings between complex manifolds that are products of hyperbolic Riemann surfaces. While an important special case of our result follows from the ideas developed by Remmert…

Complex Variables · Mathematics 2014-12-05 Jaikrishnan Janardhanan

We show that if the automorphism group of a projective variety is torsion, then it is finite. Motivated by Lang's conjecture on rational points of hyperbolic varieties, we use this to prove that a projective variety with only finitely many…

Algebraic Geometry · Mathematics 2020-06-23 Ariyan Javanpeykar

In this paper we obtain an almost sure invariance principle for convergent sequences of either Anosov diffeomorphisms or expanding maps on compact Riemannian manifolds and prove an ergodic stability result for such sequences. The sequences…

Dynamical Systems · Mathematics 2017-09-07 A. Castro , F. B. Rodrigues , P. Varandas

We prove a finiteness result for dominant rational maps whose orbifold base is of general type. Our finiteness result generalizes Maehara's theorem that a given variety dominates only finitely many projective varieties of general type up to…

Algebraic Geometry · Mathematics 2026-04-01 Finn Bartsch , Ariyan Javanpeykar , Erwan Rousseau

We introduce asymptotically rigid mapping class groups of handlebodies and determine their finiteness properties, which vary depending on the space of ends of the underlying handlebody. As it turns out, in some cases, the homology of these…

Geometric Topology · Mathematics 2025-04-09 Sergio Domingo-Zubiaga

In the present paper, we show that many combinatorial and topological objects, such as maps, hypermaps, three-dimensional pavings, constellations and branched coverings of the two--sphere admit any given finite automorphism group. This…

Combinatorics · Mathematics 2020-01-16 Rémi Bottinelli , Laura Grave de Peralta , Alexander Kolpakov

We give a simplified and more algebraic proof of the finiteness of the families of Calabi-Yau n-folds with non-vanishing of Yukawa-coupling over a fixed base curve and with fixed degeneration locus. We also give a generalization of this…

Algebraic Geometry · Mathematics 2010-10-21 Kefeng Liu , Andrey Todorov , Shing-Tung Yau , Kang Zuo

We give a combinatorial classification for the class of postcritically fixed Newton maps of polynomials and indicate potential for extensions. As our main tool, we show that for a large class of Newton maps that includes all hyperbolic…

Dynamical Systems · Mathematics 2012-03-24 Johannes Rückert

We show that the geometric and homological finiteness properties of group pairs are invariant under a suitable notion of quasi-isometry for group pairs.

Group Theory · Mathematics 2026-03-09 Kevin Li , Luis Jorge Sánchez Saldaña
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