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Author: N. S. Narasimha Sastry
Publisher:
ISBN: 9788190254595
Category : Geometric group theory
Languages : en
Pages : 159
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Book Description
Author: Mladen Bestvina
Publisher: American Mathematical Soc.
ISBN: 1470412276
Category : Mathematics
Languages : en
Pages : 417
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Book Description
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: Pierre de la Harpe
Publisher: University of Chicago Press
ISBN: 9780226317212
Category : Mathematics
Languages : en
Pages : 348
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Book Description
In this book, Pierre de la Harpe provides a concise and engaging introduction to geometric group theory, a new method for studying infinite groups via their intrinsic geometry that has played a major role in mathematics over the past two decades. A recognized expert in the field, de la Harpe adopts a hands-on approach, illustrating key concepts with numerous concrete examples. The first five chapters present basic combinatorial and geometric group theory in a unique and refreshing way, with an emphasis on finitely generated versus finitely presented groups. In the final three chapters, de la Harpe discusses new material on the growth of groups, including a detailed treatment of the "Grigorchuk group." Most sections are followed by exercises and a list of problems and complements, enhancing the book's value for students; problems range from slightly more difficult exercises to open research problems in the field. An extensive list of references directs readers to more advanced results as well as connections with other fields.
Author: Matt Clay
Publisher: Princeton University Press
ISBN: 0691158665
Category : Mathematics
Languages : en
Pages : 456
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Book Description
Geometric group theory is the study of the interplay between groups and the spaces they act on, and has its roots in the works of Henri Poincaré, Felix Klein, J.H.C. Whitehead, and Max Dehn. Office Hours with a Geometric Group Theorist brings together leading experts who provide one-on-one instruction on key topics in this exciting and relatively new field of mathematics. It's like having office hours with your most trusted math professors. An essential primer for undergraduates making the leap to graduate work, the book begins with free groups—actions of free groups on trees, algorithmic questions about free groups, the ping-pong lemma, and automorphisms of free groups. It goes on to cover several large-scale geometric invariants of groups, including quasi-isometry groups, Dehn functions, Gromov hyperbolicity, and asymptotic dimension. It also delves into important examples of groups, such as Coxeter groups, Thompson's groups, right-angled Artin groups, lamplighter groups, mapping class groups, and braid groups. The tone is conversational throughout, and the instruction is driven by examples. Accessible to students who have taken a first course in abstract algebra, Office Hours with a Geometric Group Theorist also features numerous exercises and in-depth projects designed to engage readers and provide jumping-off points for research projects.
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.
Author: Max Dehn
Publisher: Springer Science & Business Media
ISBN: 1461246687
Category : Mathematics
Languages : en
Pages : 404
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Book Description
The work of Max Dehn (1878-1952) has been quietly influential in mathematics since the beginning of the 20th century. In 1900 he became the first to solve one of the famous Hilbert problems (the third, on the decomposition of polyhedra), in 1907 he collaborated with Heegaard to produce the first survey of topology, and in 1910 he began publishing his own investigations in topology and combinatorial group theory. His influence is apparent in the terms Dehn's algorithm, Dehn's lemma and Dehn surgery (and Dehnsche Gruppenbilder, generally known in English as Cayley diagrams), but direct access to his work has been difficult. No edition of his works has been produced, and some of his most important results were never published, at least not by him. The present volume is a modest attempt to bring Dehn's work to a wider audience, particularly topologists and group theorists curious about the origins of their subject and interested in mining the sources for new ideas. It consists of English translations of eight works : five of Dehn's major papers in topology and combinatorial group theory, and three unpublished works which illuminate the published papers and contain some results not available elsewhere. In addition, I have written a short introduction to each work, summarising its contents and trying to establish its place among related works of Dehn and others, and I have added an appendix on the Dehn-Nielsen theorem (often known simply as Nielsen's theorem) .
Author: S.M. Gersten
Publisher: Springer Science & Business Media
ISBN: 1461395860
Category : Mathematics
Languages : en
Pages : 346
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Book Description
Essays in Group Theory contains five papers on topics of current interest which were presented in a seminar at MSRI, Berkeley in June, 1985. Special mention should be given to Gromov`s paper, one of the most significant in the field in the last decade. It develops the theory of hyperbolic groups to include a version of small cancellation theory sufficiently powerful to recover deep results of Ol'shanskii and Rips. Each of the remaining papers, by Baumslag and Shalen, Gersten, Shalen, and Stallings contains gems. For example, the reader will delight in Stallings' explicit construction of free actions of orientable surface groups on R-trees. Gersten's paper lays the foundations for a theory of equations over groups and contains a very quick solution to conjugacy problem for a class of hyperbolic groups. Shalen's article reviews the rapidly expanding theory of group actions on R-trees and the Baumslag-Shalen article uses modular representation theory to establish properties of presentations whose relators are pth-powers.
Author: Alberto Verjovski
Publisher: #N/A
ISBN: 981456964X
Category :
Languages : en
Pages : 744
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Book Description
This proceedings presents the latest research materials done on group theory from geometrical viewpoint in particular Gromov's theory of hyperbolic groups, Coxeter groups, Tits buildings and actions on real trees. All these are very active subjects.
Author: D.J. Collins
Publisher: Springer Science & Business Media
ISBN: 3642580130
Category : Mathematics
Languages : en
Pages : 248
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Book Description
From the reviews: "... The book under review consists of two monographs on geometric aspects of group theory ... Together, these two articles form a wide-ranging survey of combinatorial group theory, with emphasis very much on the geometric roots of the subject. This will be a useful reference work for the expert, as well as providing an overview of the subject for the outsider or novice. Many different topics are described and explored, with the main results presented but not proved. This allows the interested reader to get the flavour of these topics without becoming bogged down in detail. Both articles give comprehensive bibliographies, so that it is possible to use this book as the starting point for a more detailed study of a particular topic of interest. ..." Bulletin of the London Mathematical Society, 1996
Author: John Cossey
Publisher: Walter de Gruyter
ISBN: 9783110163667
Category : Art
Languages : en
Pages : 352
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Book Description
Seventeen contributions from the July 1996 conference present current research in the theory of algebraic groups, the theory of automatic and hyperbolic groups, convergence groups, distortion of subgroups, Artin groups and braid groups, amenable groups, combinatorial approaches to conformal structure, algebraic and geometric automorphism groups, and geometric invariants of groups. Some of the specific topics are the topology of polynomial varieties, the intersection of flat subsets of a braid group, embedding free amalgams of discrete groups in non-discrete topological groups, automatic structures on central extensions, and whitehead graphs on handlebodies. No index. Annotation copyrighted by Book News, Inc., Portland, OR
Author: Karl W. Gruenberg
Publisher:
ISBN:
Category : Mathematics
Languages : en
Pages : 376
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Book Description
This volume celebrates the major impact on modern group theory made by Philip Hall. The survey articles were commissioned to provide reasonably self-contained, up-to-date and forward-looking accounts of finite and infinite group theory. Mathematicians working on group theory and ring theory will find this volume interesting and useful, and the material is accessible to students specializing in algebra. This book was prepared for Philip Hall's 80th birthday, but is now published after his death as a tribute to his genius. FROM THE PREFACE: This book was to have been an eightieth birthday present for Philip Hall. In the summer of 1980 the Council of the London Mathematical Society asked us to edit a volume to mark Hall's 80th birthday on the eleventh of April 1984. We decided to produce a book in two parts: the first to consist of commissioned survey articles and the second of submitted research papers. Because we intended to invite research articles by advertisement, we had to tell Hall something of our plans; this we did at a pub lunch outside Cambridge in May 1981. At the same time we asked him if he would agree to take part in a birthday celebration in his honour which had been proposed by the Society. Characteristically he said that he would prefer no public festivity; but he liked the idea of a book, especially the surveys. Our idea was that each survey would give a reasonably self-contained, up-to-date and forward-looking account of an area in which Hall had made important contributions. In view of Hall's considerable impact on modern group theory, we hoped that the essays would together form a fairly coherent picture of the subject. So as to avoid too much overlap, we suggested to each author the area we should like him to cover, but only in broad terms; the choice of material within the suggested area was left entirely to him. It was inevitable, perhaps, that gaps would remain. When Hall died on 30th December 1982, we felt that the second half of the planned book was no longer appropriate, but that the essays should still be published. We offer them here not as a memorial volume, since they were largely written while Philip Hall was alive and well, but as a tribute to his genius.
