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Related papers: On volumes of complex hyperbolic orbifolds

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This paper investigates a real-valued topological invariant of 3-manifolds called topological volume. For a given 3-manifold M it is defined as the smallest volume of the complement of a (possibly empty) hyperbolic link in M. Various…

Geometric Topology · Mathematics 2024-02-08 Marc Kegel , Arunima Ray , Jonathan Spreer , Em Thompson , Stephan Tillmann

We derive bounds on the volume of an inclusion in a body in two or three dimensions when the conductivities of the inclusion and the surrounding body are complex and assumed to be known. The bounds are derived in terms of average values of…

Analysis of PDEs · Mathematics 2015-06-09 Andrew E. Thaler , Graeme W. Milton

We show that the cusp volume of a hyperbolic alternating knot can be bounded above and below in terms of the twist number of an alternating diagram of the knot. This leads to diagrammatic estimates on lengths of slopes, and has some…

Geometric Topology · Mathematics 2016-09-21 Marc Lackenby , Jessica S. Purcell

We propose a quantum version of the quadratic volume simplicity constraint for the EPRL spin foam model. It relies on a formula for the volume of 4-dimensional polyhedra, depending on its bivectors and the knotting class of its boundary…

General Relativity and Quantum Cosmology · Physics 2018-04-25 Benjamin Bahr , Vadim Belov

We estimate the upper bound for the $\ell^{\infty}$-norm of the volume form on $\mathbb{H}^2\times\mathbb{H}^2\times\mathbb{H}^2$ seen as a class in…

Differential Geometry · Mathematics 2022-04-19 Xiaofeng Meng

We obtain sharp volume bound for a conic 2-sphere in terms of its Gaussian curvature bound. We also give the geometric models realizing the extremal volume. In particular, when the curvature is bounded in absolute value by $1$, we compute…

Differential Geometry · Mathematics 2016-04-12 Hao Fang , Mijia Lai

We prove a conjecture of Goncharov, which says that any multiple polylogarithm can be expressed via polylogarithms of depth at most half of the weight. We give an explicit formula for this presentation, involving a summation over trees that…

Algebraic Geometry · Mathematics 2022-05-17 Daniil Rudenko

We build a non-compact, orientable, hyperbolic four-manifold of finite volume that does not admit any spin structure.

Geometric Topology · Mathematics 2026-04-28 Stefano Riolo , Edoardo Rizzi

It is known that the lengths of closed geodesics of an arithmetic hyperbolic orbifold are related to Salem numbers. We initiate a quantitative study of this phenomenon. We show that any non-compact arithmetic $3$-dimensional orbifold…

Geometric Topology · Mathematics 2020-08-04 Mikhail Belolipetsky , Matilde Lalín , Plinio G. P. Murillo , Lola Thompson

Volumes of moduli spaces of hyperbolic cone surfaces were previously defined and computed when the angles of the cone singularities are at most 2pi. We propose a general definition of these volumes without restriction on the angles. This…

Algebraic Geometry · Mathematics 2024-05-20 Adrien Sauvaget

We consider an elliptic system with regular H{\"o}lderian weight and exponential nonlinearity or with weight and boundary singularity, and, Dirichlet condition. We prove the boundedness of the volume of the solutions to those systems on the…

Analysis of PDEs · Mathematics 2022-01-06 Samy Skander Bahoura

In this paper we study the structure of complex points of codimension 2 real submanifolds in complex $n$ dimensional manifolds. We show that the local structure of a complex point up to isotopy only depends on their type (either elliptic or…

Complex Variables · Mathematics 2015-02-24 Marko Slapar

We show that the standard method for constructing closed hyperbolic manifolds of arbitrary dimension possessing reflective symmetries typically produces reflections whose fixed point sets are nonseparating.

Geometric Topology · Mathematics 2025-07-01 Sami Douba , Franco Vargas Pallete

We characterize the volume entropy of an arbitrary regular building as the topological pressure of the geodesic flow on an apartment. We show that the Liouville measure is not entropy maximizing measure for regular hyperbolic buildings. As…

Dynamical Systems · Mathematics 2012-12-14 Francois Ledrappier , Seonhee Lim

We provide a detailed proof of the following folklore theorem: Let mu > 0 be a Margulis constant for 3-dimensional hyperbolic space. Then for any d>0 there exists a constant K>0, depending on mu and d, so that for any complete finite volume…

Geometric Topology · Mathematics 2012-05-14 Tsuyoshi Kobayashi , Yo'av Rieck

The purpose of this article is twofold. The first aim is to characterize an $n$-dimensional hyperbolic complex manifold $M$ exhausted by a sequence $\{\Omega_j\}$ of domains in $\mathbb C^n$ via an exhausting sequence $\{f_j\colon…

Complex Variables · Mathematics 2023-09-13 Ninh Van Thu , Trinh Huy Vu , Nguyen Quang Dieu

Given a compact connected set $E$ in the unit disk $\mathbb{B}^{2}$, we give a new upper bound for the conformal capacity of the condenser $(\mathbb{B}^{2}, E)$ in terms of the hyperbolic diameter $t$ of $E$. Moreover, for $t>0$, we…

Metric Geometry · Mathematics 2021-12-07 Mohamed M. S. Nasser , Oona Rainio , Matti Vuorinen

If M is a closed simple 3-manifold whose fundamental group contains a genus-g surface group for some g>1, and if the dimension of H_1(M;Z_2) is at least max(3g-1,6), we show that M contains a closed, incompressible surface of genus at most…

Geometric Topology · Mathematics 2010-10-20 Marc Culler , Peter B. Shalen

We construct the first example of a ``one-cusped'' hyperbolic 3-orbifold for which we see the true shape of the space of hyperbolic Dehn fillings.

Geometric Topology · Mathematics 2008-09-22 Sadayoshi Kojima , Shigeru Mizushima

See math.CV/0509030 which replaces this paper.

Complex Variables · Mathematics 2007-05-23 A. V. Isaev
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