Relatively Hyperbolic Groups: Intrinsic Geometry, Algebraic Properties, and Algorithmic Problems

Relatively Hyperbolic Groups: Intrinsic Geometry, Algebraic Properties, and Algorithmic Problems PDF Author: Denis V. Osin
Publisher: American Mathematical Soc.
ISBN: 0821838210
Category : Mathematics
Languages : en
Pages : 114

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Book Description
In this the authors obtain an isoperimetric characterization of relatively hyperbolicity of a groups with respect to a collection of subgroups. This allows them to apply classical combinatorial methods related to van Kampen diagrams to obtain relative analogues of some well-known algebraic and geometric properties of ordinary hyperbolic groups. There is also an introduction and study of the notion of a relatively quasi-convex subgroup of a relatively hyperbolic group and solve somenatural algorithmic problems.

Relatively Hyperbolic Groups: Intrinsic Geometry, Algebraic Properties, and Algorithmic Problems

Relatively Hyperbolic Groups: Intrinsic Geometry, Algebraic Properties, and Algorithmic Problems PDF Author: Denis V. Osin
Publisher: American Mathematical Soc.
ISBN: 0821838210
Category : Mathematics
Languages : en
Pages : 114

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Book Description
In this the authors obtain an isoperimetric characterization of relatively hyperbolicity of a groups with respect to a collection of subgroups. This allows them to apply classical combinatorial methods related to van Kampen diagrams to obtain relative analogues of some well-known algebraic and geometric properties of ordinary hyperbolic groups. There is also an introduction and study of the notion of a relatively quasi-convex subgroup of a relatively hyperbolic group and solve somenatural algorithmic problems.

Relatively Hyperbolic Groups

Relatively Hyperbolic Groups PDF Author: Denis V. Osin
Publisher: American Mathematical Soc.
ISBN: 9781470404444
Category : Mathematics
Languages : en
Pages : 100

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Book Description
Presents an isoperimetric characterization of relatively hyperbolicity of a groups with respect to a collection of subgroups. This book allows us to apply classical combinatorial methods related to van Kampen diagrams to obtain relative analogues of some well-known algebraic and geometric properties of ordinary hyperbolic groups.

Hyperbolically Embedded Subgroups and Rotating Families in Groups Acting on Hyperbolic Spaces

Hyperbolically Embedded Subgroups and Rotating Families in Groups Acting on Hyperbolic Spaces PDF Author: F. Dahmani
Publisher: American Mathematical Soc.
ISBN: 1470421941
Category : Mathematics
Languages : en
Pages : 164

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Book Description
he authors introduce and study the notions of hyperbolically embedded and very rotating families of subgroups. The former notion can be thought of as a generalization of the peripheral structure of a relatively hyperbolic group, while the latter one provides a natural framework for developing a geometric version of small cancellation theory. Examples of such families naturally occur in groups acting on hyperbolic spaces including hyperbolic and relatively hyperbolic groups, mapping class groups, , and the Cremona group. Other examples can be found among groups acting geometrically on spaces, fundamental groups of graphs of groups, etc. The authors obtain a number of general results about rotating families and hyperbolically embedded subgroups; although their technique applies to a wide class of groups, it is capable of producing new results even for well-studied particular classes. For instance, the authors solve two open problems about mapping class groups, and obtain some results which are new even for relatively hyperbolic groups.

Geometry, Topology, and Dynamics in Negative Curvature

Geometry, Topology, and Dynamics in Negative Curvature PDF Author: C. S. Aravinda
Publisher: Cambridge University Press
ISBN: 110752900X
Category : Mathematics
Languages : en
Pages : 378

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Book Description
Ten high-quality survey articles provide an overview of important recent developments in the mathematics surrounding negative curvature.

Geometric Group Theory

Geometric Group Theory PDF Author: Cornelia Druţu
Publisher: American Mathematical Soc.
ISBN: 1470411040
Category : Mathematics
Languages : en
Pages : 841

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Book Description
The key idea in geometric group theory is to study infinite groups by endowing them with a metric and treating them as geometric spaces. This applies to many groups naturally appearing in topology, geometry, and algebra, such as fundamental groups of manifolds, groups of matrices with integer coefficients, etc. The primary focus of this book is to cover the foundations of geometric group theory, including coarse topology, ultralimits and asymptotic cones, hyperbolic groups, isoperimetric inequalities, growth of groups, amenability, Kazhdan's Property (T) and the Haagerup property, as well as their characterizations in terms of group actions on median spaces and spaces with walls. The book contains proofs of several fundamental results of geometric group theory, such as Gromov's theorem on groups of polynomial growth, Tits's alternative, Stallings's theorem on ends of groups, Dunwoody's accessibility theorem, the Mostow Rigidity Theorem, and quasiisometric rigidity theorems of Tukia and Schwartz. This is the first book in which geometric group theory is presented in a form accessible to advanced graduate students and young research mathematicians. It fills a big gap in the literature and will be used by researchers in geometric group theory and its applications.

From Riches to Raags: 3-Manifolds, Right-Angled Artin Groups, and Cubical Geometry

From Riches to Raags: 3-Manifolds, Right-Angled Artin Groups, and Cubical Geometry PDF Author: Daniel T. Wise
Publisher: American Mathematical Soc.
ISBN: 0821888005
Category : Mathematics
Languages : en
Pages : 161

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Book Description
Wise describes a stream of geometric group theory connecting many of the classically considered groups arising in combinatorial group theory with right-angled Artin groups. He writes for new or seasoned researchers who have completed at least an introductory course of geometric groups theory or even just hyperbolic groups, but says some comfort with graphs of groups would be helpful. His topics include non-positively curved cube complexes, virtual specialness of malnormal amalgams, finiteness properties of the dual cube complex, walls in cubical small-cancellation theory, and hyperbolicity and quasiconvexity detection. Color drawings illustrate. Annotation ©2013 Book News, Inc., Portland, OR (booknews.com).

Beyond Hyperbolicity

Beyond Hyperbolicity PDF Author: Mark Hagen
Publisher: Cambridge University Press
ISBN: 1108447295
Category : Mathematics
Languages : en
Pages : 242

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Book Description
Contains expository articles and research papers in geometric group theory focusing on generalisations of Gromov hyperbolicity.

In the Tradition of Thurston II

In the Tradition of Thurston II PDF Author: Ken’ichi Ohshika
Publisher: Springer Nature
ISBN: 3030975606
Category : Mathematics
Languages : en
Pages : 525

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Book Description
The purpose of this volume and of the other volumes in the same series is to provide a collection of surveys that allows the reader to learn the important aspects of William Thurston’s heritage. Thurston’s ideas have altered the course of twentieth century mathematics, and they continue to have a significant influence on succeeding generations of mathematicians. The topics covered in the present volume include com-plex hyperbolic Kleinian groups, Möbius structures, hyperbolic ends, cone 3-manifolds, Thurston’s norm, surgeries in representation varieties, triangulations, spaces of polygo-nal decompositions and of singular flat structures on surfaces, combination theorems in the theories of Kleinian groups, hyperbolic groups and holomorphic dynamics, the dynamics and iteration of rational maps, automatic groups, and the combinatorics of right-angled Artin groups.

Fields of Logic and Computation III

Fields of Logic and Computation III PDF Author: Andreas Blass
Publisher: Springer Nature
ISBN: 3030480062
Category : Computers
Languages : en
Pages : 349

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Book Description
This Festschrift is published in honor of Yuri Gurevich’s 80th birthday. An associated conference, YuriFest 2020, was planned for May 18–20 in Fontainebleau, France, in combination with the 39th Journées sur les Arithmétiques Faibles also celebrating Yuri’s 80th birthday. Because of the coronavirus situation, the conference had to be postponed, but this Festschrift is being published as originally planned. It addresses a very wide variety of topics, but by no means all of the fields of logic and computation in which Yuri has made important progress.

Topological and Asymptotic Aspects of Group Theory

Topological and Asymptotic Aspects of Group Theory PDF Author: R. I. Grigorchuk
Publisher: American Mathematical Soc.
ISBN: 0821837567
Category : Mathematics
Languages : en
Pages : 248

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Book Description
The articles in this volume are based on the talks given at two special sessions at the AMS Sectional meetings held in 2004. The articles cover various topological and asymptotic aspects of group theory, such as hyperbolic and relatively hyperbolic groups, asymptotic cones, Thompson's group, Nielsen fixed point theory, homology, groups acting on trees, groups generated by finite automata, iterated monodromy groups, random walks on finitely generated groups, heat kernels, and currents on free groups.