Topics in Geometric Group Theory

Author: Pierre de la Harpe

Publisher: University of Chicago Press

ISBN: 9780226317212

Category: Mathematics

Page: 310

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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.
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Spectral Theory of Automorphic Functions

and Its Applications

Author: A.B. Venkov

Publisher: Springer Science & Business Media

ISBN: 9400918925

Category: Mathematics

Page: 176

View: 8987

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'Et moi ..., si j'avait su comment en revcnrr, One service mathematics has rendered the je n'y serais point aile.' human race. It has put common sense back. Jules Verne where it belongs, on the topmost shelf next to the dusty canister labelled 'discarded non The series is divergent; therefore we may be sense'. able to do something with it. Eric T. Bell O. Heaviside Mathematics is a tool for thought. A highly necessary tool in a world where both feedback and non linearities abound. Similarly, all kinds of parts of mathematics serve as tools for other parts and for other sciences. Applying a simple rewriting rule to the quote on the right above one finds such statements as: 'One service topology has rendered mathematical physics .. .'; 'One service logic has rendered com puter science .. .'; 'One service category theory has rendered mathematics .. .'. All arguably true. And all statements obtainable this way form part of the raison d'etre of this series.
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Geometry and Dynamics in Gromov Hyperbolic Metric Spaces

Author: Tushar Das,David Simmons,Mariusz Urbański

Publisher: American Mathematical Soc.

ISBN: 1470434652

Category: Geometry, Hyperbolic

Page: 281

View: 8299

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This book presents the foundations of the theory of groups and semigroups acting isometrically on Gromov hyperbolic metric spaces. Particular emphasis is paid to the geometry of their limit sets and on behavior not found in the proper setting. The authors provide a number of examples of groups which exhibit a wide range of phenomena not to be found in the finite-dimensional theory. The book contains both introductory material to help beginners as well as new research results, and closes with a list of attractive unsolved problems.
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Metric Spaces of Non-Positive Curvature

Author: Martin R. Bridson,André Häfliger

Publisher: Springer Science & Business Media

ISBN: 3662124947

Category: Mathematics

Page: 643

View: 6966

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A description of the global properties of simply-connected spaces that are non-positively curved in the sense of A. D. Alexandrov, and the structure of groups which act on such spaces by isometries. The theory of these objects is developed in a manner accessible to anyone familiar with the rudiments of topology and group theory: non-trivial theorems are proved by concatenating elementary geometric arguments, and many examples are given. Part I provides an introduction to the geometry of geodesic spaces, while Part II develops the basic theory of spaces with upper curvature bounds. More specialized topics, such as complexes of groups, are covered in Part III.
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Topology '90

Author: Boris Nikolaevich Apanasov,Ohio State University. International Mathematical Research Institute

Publisher: Walter de Gruyter

ISBN: N.A

Category: Mathematics

Page: 457

View: 1278

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