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Related papers: Isoscattering Schottky Manifolds

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In this paper, for each finite group $G$, we construct explicitly a non-compact complete finite-volume arithmetic hyperbolic $4$-manifold $M$ such that $\mathrm{Isom}\,M \cong G$, or $\mathrm{Isom}^{+}\,M \cong G$. In order to do so, we use…

Geometric Topology · Mathematics 2020-10-12 Alexander Kolpakov , Leone Slavich

We introduce a class of cusped hyperbolic $3$-manifolds that we call mixed-platonic, composed of regular ideal hyperbolic polyhedra of more than one type, which includes certain previously-known examples. We establish basic facts about…

Geometric Topology · Mathematics 2024-07-16 Eric Chesebro , Michelle Chu , Jason DeBlois , Neil R. Hoffman , Priyadip Mondal , Genevieve S. Walsh

We discuss asymptotically hyperbolic manifold with a noncompact boundary which is close to a horosphere in a certain sense. The model case is a horoball or the complement of a horoball in standard hyperbolic space. We show some geometric…

Differential Geometry · Mathematics 2021-02-18 Xiaoxiang Chai

We exhibit many examples of closed symplectic manifolds on which there is an autonomous Hamiltonian whose associated flow has no nonconstant periodic orbits (the only previous explicit example in the literature was the torus T^2n (n\geq 2)…

Symplectic Geometry · Mathematics 2014-09-10 Michael Usher

In the three-body problem with positive energy, solutions which avoid triple collision have the property that the size of the triangle formed by the bodies tends to infinity as $t\rightarrow \pm\infty$. Furthermore, the triangles have…

Dynamical Systems · Mathematics 2026-02-20 Richard Moeckel

Let $M_0$ be a compact and orientable 3-manifold. After capping off spherical boundaries with balls and removing any torus boundaries, we prove that the resulting manifold $M$ contains handlebodies of arbitrary genus such that the closure…

Geometric Topology · Mathematics 2025-02-03 Colin Adams , Francisco Gomez-Paz , Jiachen Kang , Lukas Krause , Gregory Li , Chloe Marple , Ziwei Tan

This is the first in a series of papers showing that Haken manifolds have hyperbolic structures; this first was published, the second two have existed only in preprint form, and later preprints were never completed. This eprint is only an…

Geometric Topology · Mathematics 2007-05-23 William P. Thurston

In this paper we construct arbitrarily large families of smooth projective varieties and closed Riemannian manifolds that share many algebraic and analytic invariants. For instance, every non-arithmetic, closed hyperbolic $3$--manifold…

Geometric Topology · Mathematics 2018-04-02 D. Arapura , J. Katz , D. B. McReynolds , P. Solapurkar

We prove the convex combination theorem for hyperbolic n-manifolds. Applications are given both in high dimensions and in 3 dimensions. One consequence is that given two geometrically finite subgroups of a discrete group of isometries of…

Geometric Topology · Mathematics 2014-02-26 Mark Baker , Daryl Cooper

We construct pairs of compact Riemannian orbifolds which are isospectral for the Laplace operator on functions such that the maximal isotropy order of singular points in one of the orbifolds is higher than in the other. In one type of…

Differential Geometry · Mathematics 2009-01-23 Juan Pablo Rossetti , Dorothee Schueth , Martin Weilandt

The goal of this paper is to describe a theoretical construction of an infinite collection of non-classical Schottky groups. We first show that there are infinitely many non-classical noded Schottky groups on the boundary of Schottky space,…

Geometric Topology · Mathematics 2018-01-11 Ruben A. Hidalgo , Bernard Maskit

Bounded-type 3-manifolds arise as combinatorially bounded gluings of irreducible 3-manifolds chosen from a finite list. We prove effective hyperbolization and effective rigidity for a broad class of 3-manifolds of bounded type and large…

Geometric Topology · Mathematics 2017-05-17 Jeffrey Brock , Yair Minsky , Hossein Namazi , Juan Souto

In this note, we show that there exist cusped hyperbolic $3$-manifolds that embed geodesically, but cannot bound geometrically. Thus, being a geometric boundary is a non-trivial property for such manifolds. Our result complements the work…

Geometric Topology · Mathematics 2020-03-19 Alexander Kolpakov , Alan W. Reid , Stefano Riolo

We classify the topological types for the unions of the totally geodesic 3-punctured spheres in orientable hyperbolic 3-manifolds. General types of the unions appear in various hyperbolic 3-manifolds. Each of the special types of the unions…

Geometric Topology · Mathematics 2022-10-20 Ken'ichi Yoshida

The main result of this paper is that any $3$-dimensional manifold with a finite group action is equivariantly, invertibly homology cobordant to a hyperbolic manifold; this result holds with suitable twisted coefficients as well. The…

Geometric Topology · Mathematics 2020-09-24 Dave Auckly , Hee Jung Kim , Paul Melvin , Daniel Ruberman

The problem of classifying, upto isometry (or similarity), the orientable spherical, Euclidean and hyperbolic 3-manifolds that arise by identifying the faces of a Platonic solid is formulated in the language of Coxeter groups. In the…

Geometric Topology · Mathematics 2007-06-13 Brent Everitt

We construct an infinite family of homologous, non-isotopic, symplectic surfaces of any genus greater than one in a certain class of closed, simply connected, symplectic four-manifolds. Our construction is the first example of this…

Geometric Topology · Mathematics 2018-12-24 B. Doug Park , Mainak Poddar , Stefano Vidussi

In this succinct note, it is showed that a partition function of equivalent classes of hyperbolic surfaces can be connected to an Ising model located on the boundary of the Poincare disc, as hinted by Poincare's Uniformization theorem and…

General Relativity and Quantum Cosmology · Physics 2023-08-29 William Chuang

In this paper, we begin an investigation of infinite genus handlebodies, infinitely generated Schottky groups, and related uniformization questions by giving appropriate definitions for them. There are uncountably many topological types of…

Geometric Topology · Mathematics 2025-08-26 Ara Basmajian , Katsuhiko Matsuzaki

We construct a Cartan-Hadamard manifold with pinched negative curvature whose group of isometries possesses divergent discrete free subgroups with parabolic elements who do not satisfy the so-called "parabolic gap condition" . This…

Dynamical Systems · Mathematics 2010-10-29 Marc Peigné