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Related papers: Hyperbolic semi-adequate links

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In this paper we consider a large family of graphs of hierarchically hyperbolic groups (HHG) and show that their fundamental groups admit HHG structures. To do that, we will investigate the notion of hierarchical quasi convexity and show…

Group Theory · Mathematics 2018-01-08 Davide Spriano

We show that quasi-isometries of (well-behaved) hierarchically hyperbolic groups descend to quasi-isometries of their maximal hyperbolic space. This has two applications, one relating to quasi-isometry invariance of acylindrical…

Group Theory · Mathematics 2025-01-08 Antoine Goldsborough , Mark Hagen , Harry Petyt , Jacob Russell , Alessandro Sisto

In this paper, we introduce the concept of quasi-semi hyperbolic pseudo-orbits and prove that quasi-semi hyperbolicity implies quasi hyperbolicity provided the error magnitude are sufficiently small. We also have successively demonstrated…

Dynamical Systems · Mathematics 2026-04-01 Yan He , Meihua Jin

The necessary and sufficient conditions for a hyperbolic semi-discrete equation to have five dimensional characteristic {\it x}-ring are derived. For any given chain, the derived conditions are easily verifiable by straightforward…

Exactly Solvable and Integrable Systems · Physics 2016-04-04 Kostyantyn Zheltukhin , Natalya Zheltukhina

Given a reduced alternating diagram for a link, we obtain conditions that guarantee that the link complement has a complete hyperbolic structure, crossing arcs are the edges of an ideal geodesic triangulation, and every crossing arc is…

Geometric Topology · Mathematics 2019-04-12 Anastasiia Tsvietkova

We give technical conditions for a quasi-isometry of pairs to preserve a subgroup being hyperbolically embedded. We consider applications to the quasi-isometry and commensurability invariance of acylindrical hyperbolicity of finitely…

Group Theory · Mathematics 2025-01-15 Sam Hughes , Eduardo Martínez-Pedroza

In this paper we provide a procedure to obtain a non-trivial HHS structure on a hyperbolic space. In particular, we prove that given a finite collection $\mathcal{F}$ of quasi-convex subgroups of a hyperbolic group $G$, there is an HHG…

Group Theory · Mathematics 2018-12-17 Davide Spriano

We consider polynomial maps $f:\C\to\C$ of degree $d\ge 2$, or more generally polynomial maps from a finite union of copies of $\C$ to itself which have degree two or more on each copy. In any space $\p^{S}$ of suitably normalized maps of…

Dynamical Systems · Mathematics 2009-09-25 John W. Milnor , Alfredo Poirier

The first examples of totally geodesic Seifert surfaces are constructed for hyperbolic knots and links, including both free and totally knotted surfaces. Then it is proved that two bridge knot complements cannot contain totally geodesic…

Geometric Topology · Mathematics 2007-05-23 Colin Adams , Eric Schoenfeld

The combinatorial hierarchical hyperbolicity criterion is a very useful way of constructing new hierarchically hyperbolic spaces (HHSs). We show that, conversely, HHSs satisfying natural assumptions (satisfied, for example, by mapping class…

Group Theory · Mathematics 2026-03-25 Mark Hagen , Giorgio Mangioni , Alessandro Sisto

We establish necessary and sufficient conditions for the realization of mapping schemata as post-critically finite polynomials, or more generally, as post-critically finite polynomial maps from a finite union of copies of the complex…

Dynamical Systems · Mathematics 2008-02-03 Alfredo Poirier

We give a sufficient condition for an almost alternating link diagram to represent a non-splittable link. The main theorem gives us a way to see if a given almost alternating link diagram represents a splittable link without increasing…

Geometric Topology · Mathematics 2007-05-23 Tatsuya Tsukamoto

We give a list of hyperbolic two-bridge links which includes all such links with complete exceptional surgeries, i.e., Dehn surgeries on both components which yield non-hyperbolic manifolds but whose all the proper sub-fillings give…

Geometric Topology · Mathematics 2023-09-18 Kazuhiro Ichihara , In Dae Jong , Hidetoshi Masai

T-positive links form a subset of strongly quasipositive links that strictly contains the set of all non-split braid positive links. Analogous to Baader's characterisation of positive links as precisely the strongly quasipositive and…

Geometric Topology · Mathematics 2026-05-12 Benjamin Bode , Paula Truöl

In a variety of settings we provide a method for decomposing a 3-manifold $M$ into pieces. When the pieces have the appropriate type of hyperbolicity, then the manifold $M$ is hyperbolic and its volume is bounded below by the sum of the…

In this paper, we first give the definiton of a vertex superalgebroid. Then we construct a family of vertex superalgebras associated to vertex superalgebroids. As a main result, we find a sufficient and necessary condition that this vertex…

Rings and Algebras · Mathematics 2019-04-15 Ming Li

This paper continues our study, initiated in [arXiv:1108.3370], of essential state surfaces in link complements that satisfy a mild diagrammatic hypothesis (homogeneously adequate). For hyperbolic links, we show that the geometric type of…

Geometric Topology · Mathematics 2014-05-20 David Futer , Efstratia Kalfagianni , Jessica S. Purcell

A construction of a spatial graph from a strongly invertible knot was developed by the second author, and a necessary and sufficient condition for the given spatial graph to be hyperbolic was provided as well. The condition is improved in…

General Topology · Mathematics 2007-11-05 Kazuhiro Ichihara , Akira Ushijima

In this paper, we characterize non-hyperbolic 3-component links in the 3-sphere whose exteriors contain essential 3-punctured spheres with non-integral boundary slopes. We also show the existence of embeddings of some multibranched surfaces…

Geometric Topology · Mathematics 2018-06-01 Mario Eudave-Munoz , Makoto Ozawa

As an extension of positive or almost positive diagrams and links, we introduce a notion of successively almost positive diagrams and links, and good successively almost positive diagrams and links. We review various properties of positive…

Geometric Topology · Mathematics 2021-11-30 Tetsuya Ito