Hyperbolically Embedded Subgroups And Rotating Families In Groups Acting On Hyperbolic Spaces PDF Download
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| Author | : F. Dahmani |
| Publisher | : American Mathematical Soc. |
| Total Pages | : 164 |
| Release | : 2017-01-18 |
| Genre | : Mathematics |
| ISBN | : 1470421941 |
Download Hyperbolically Embedded Subgroups and Rotating Families in Groups Acting on Hyperbolic Spaces Book in PDF, ePub and Kindle
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.
| Author | : Sang-hyun Kim |
| Publisher | : Springer |
| Total Pages | : 136 |
| Release | : 2019-01-02 |
| Genre | : Mathematics |
| ISBN | : 3030028550 |
Download Flexibility of Group Actions on the Circle Book in PDF, ePub and Kindle
In this partly expository work, a framework is developed for building exotic circle actions of certain classical groups. The authors give general combination theorems for indiscrete isometry groups of hyperbolic space which apply to Fuchsian and limit groups. An abundance of integer-valued subadditive defect-one quasimorphisms on these groups follow as a corollary. The main classes of groups considered are limit and Fuchsian groups. Limit groups are shown to admit large collections of faithful actions on the circle with disjoint rotation spectra. For Fuchsian groups, further flexibility results are proved and the existence of non-geometric actions of free and surface groups is established. An account is given of the extant notions of semi-conjugacy, showing they are equivalent. This book is suitable for experts interested in flexibility of representations, and for non-experts wanting an introduction to group representations into circle homeomorphism groups.
| Author | : Mladen Bestvina |
| Publisher | : American Mathematical Soc. |
| Total Pages | : 417 |
| Release | : 2014-12-24 |
| Genre | : Mathematics |
| ISBN | : 1470412276 |
Download Geometric Group Theory Book in PDF, ePub and Kindle
Geometric group theory refers to the study of discrete groups using tools from topology, geometry, dynamics and analysis. The field is evolving very rapidly and the present volume provides an introduction to and overview of various topics which have played critical roles in this evolution. The book contains lecture notes from courses given at the Park City Math Institute on Geometric Group Theory. The institute consists of a set of intensive short courses offered by leaders in the field, designed to introduce students to exciting, current research in mathematics. These lectures do not duplicate standard courses available elsewhere. The courses begin at an introductory level suitable for graduate students and lead up to currently active topics of research. The articles in this volume include introductions to CAT(0) cube complexes and groups, to modern small cancellation theory, to isometry groups of general CAT(0) spaces, and a discussion of nilpotent genus in the context of mapping class groups and CAT(0) groups. One course surveys quasi-isometric rigidity, others contain an exploration of the geometry of Outer space, of actions of arithmetic groups, lectures on lattices and locally symmetric spaces, on marked length spectra and on expander graphs, Property tau and approximate groups. This book is a valuable resource for graduate students and researchers interested in geometric group theory. Titles in this series are co-published with the Institute for Advanced Study/Park City Mathematics Institute. Members of the Mathematical Association of America (MAA) and the National Council of Teachers of Mathematics (NCTM) receive a 20% discount from list price.
| Author | : Julie Déserti |
| Publisher | : American Mathematical Soc. |
| Total Pages | : 187 |
| Release | : 2021-04-13 |
| Genre | : Education |
| ISBN | : 1470460122 |
Download The Cremona Group and Its Subgroups Book in PDF, ePub and Kindle
The goal of this book is to present a portrait of the n n-dimensional Cremona group with an emphasis on the 2-dimensional case. After recalling some crucial tools, the book describes a naturally defined infinite dimensional hyperbolic space on which the Cremona group acts. This space plays a fundamental role in the study of Cremona groups, as it allows one to apply tools from geometric group theory to explore properties of the subgroups of the Cremona group as well as the degree growth and dynamical behavior of birational transformations. The book describes natural topologies on the Cremona group, codifies the notion of algebraic subgroups of the Cremona groups and finishes with a chapter on the dynamics of their actions. This book is aimed at graduate students and researchers in algebraic geometry who are interested in birational geometry and its interactions with geometric group theory and dynamical systems.
| Author | : Edward Witten |
| Publisher | : Oxford University Press |
| Total Pages | : 227 |
| Release | : 2017-02-09 |
| Genre | : Science |
| ISBN | : 0191087823 |
Download Lectures on Geometry Book in PDF, ePub and Kindle
This volume contains a collection of papers based on lectures delivered by distinguished mathematicians at Clay Mathematics Institute events over the past few years. It is intended to be the first in an occasional series of volumes of CMI lectures. Although not explicitly linked, the topics in this inaugural volume have a common flavour and a common appeal to all who are interested in recent developments in geometry. They are intended to be accessible to all who work in this general area, regardless of their own particular research interests.
| Author | : MICHAEL W. DAVIS |
| Publisher | : Springer Nature |
| Total Pages | : 273 |
| Release | : 2024 |
| Genre | : Infinite groups |
| ISBN | : 3031484436 |
Download Infinite Group Actions on Polyhedra Book in PDF, ePub and Kindle
In the past fifteen years, the theory of right-angled Artin groups and special cube complexes has emerged as a central topic in geometric group theory. This monograph provides an account of this theory, along with other modern techniques in geometric group theory. Structured around the theme of group actions on contractible polyhedra, this book explores two prominent methods for constructing such actions: utilizing the group of deck transformations of the universal cover of a nonpositively curved polyhedron and leveraging the theory of simple complexes of groups. The book presents various approaches to obtaining cubical examples through CAT(0) cube complexes, including the polyhedral product construction, hyperbolization procedures, and the Sageev construction. Moreover, it offers a unified presentation of important non-cubical examples, such as Coxeter groups, Artin groups, and groups that act on buildings. Designed as a resource for graduate students and researchers specializing in geometric group theory, this book should also be of high interest to mathematicians in related areas, such as 3-manifolds.
| Author | : Mark Hagen |
| Publisher | : Cambridge University Press |
| Total Pages | : 242 |
| Release | : 2019-07-11 |
| Genre | : Mathematics |
| ISBN | : 1108447295 |
Download Beyond Hyperbolicity Book in PDF, ePub and Kindle
Contains expository articles and research papers in geometric group theory focusing on generalisations of Gromov hyperbolicity.
| Author | : Jan de Gier |
| Publisher | : Springer |
| Total Pages | : 667 |
| Release | : 2018-04-10 |
| Genre | : Mathematics |
| ISBN | : 3319722999 |
Download 2016 MATRIX Annals Book in PDF, ePub and Kindle
MATRIX is Australia’s international, residential mathematical research institute. It facilitates new collaborations and mathematical advances through intensive residential research programs, each lasting 1-4 weeks. This book is a scientific record of the five programs held at MATRIX in its first year, 2016: - Higher Structures in Geometry and Physics - Winter of Disconnectedness - Approximation and Optimisation - Refining C*-Algebraic Invariants for Dynamics using KK-theory - Interactions between Topological Recursion, Modularity, Quantum Invariants and Low- dimensional Topology The MATRIX Scientific Committee selected these programs based on their scientific excellence and the participation rate of high-profile international participants. Each program included ample unstructured time to encourage collaborative research; some of the longer programs also included an embedded conference or lecture series. The articles are grouped into peer-reviewed contributions and other contributions. The peer-reviewed articles present original results or reviews on selected topics related to the MATRIX program; the remaining contributions are predominantly lecture notes based on talks or activities at MATRIX.
| Author | : Sirakov Boyan |
| Publisher | : World Scientific |
| Total Pages | : 5396 |
| Release | : 2019-02-27 |
| Genre | : Mathematics |
| ISBN | : 9813272899 |
Download Proceedings Of The International Congress Of Mathematicians 2018 (Icm 2018) (In 4 Volumes) Book in PDF, ePub and Kindle
The Proceedings of the ICM publishes the talks, by invited speakers, at the conference organized by the International Mathematical Union every 4 years. It covers several areas of Mathematics and it includes the Fields Medal and Nevanlinna, Gauss and Leelavati Prizes and the Chern Medal laudatios.
| Author | : Raul E Curto |
| Publisher | : Springer Nature |
| Total Pages | : 531 |
| Release | : 2020-12-12 |
| Genre | : Mathematics |
| ISBN | : 3030433803 |
Download Operator Theory, Operator Algebras and Their Interactions with Geometry and Topology Book in PDF, ePub and Kindle
This book is the proceeding of the International Workshop on Operator Theory and Applications (IWOTA) held in July 2018 in Shanghai, China. It consists of original papers, surveys and expository articles in the broad areas of operator theory, operator algebras and noncommutative topology. Its goal is to give graduate students and researchers a relatively comprehensive overview of the current status of research in the relevant fields. The book is also a special volume dedicated to the memory of Ronald G. Douglas who passed away on February 27, 2018 at the age of 79. Many of the contributors are Douglas’ students and past collaborators. Their articles attest and commemorate his life-long contribution and influence to these fields.
