Beyond Hyperbolicity

Beyond Hyperbolicity
Author: Mark Hagen
Publisher: Cambridge University Press
Total Pages: 242
Release: 2019-07-11
Genre: Mathematics
ISBN: 1108577350

Since the notion was introduced by Gromov in the 1980s, hyperbolicity of groups and spaces has played a significant role in geometric group theory; hyperbolic groups have good geometric properties that allow us to prove strong results. However, many classes of interest in our exploration of the universe of finitely generated groups contain examples that are not hyperbolic. Thus we wish to go 'beyond hyperbolicity' to find good generalisations that nevertheless permit similarly strong results. This book is the ideal resource for researchers wishing to contribute to this rich and active field. The first two parts are devoted to mini-courses and expository articles on coarse median spaces, semihyperbolicity, acylindrical hyperbolicity, Morse boundaries, and hierarchical hyperbolicity. These serve as an introduction for students and a reference for experts. The topics of the surveys (and more) re-appear in the research articles that make up Part III, presenting the latest results beyond hyperbolicity.

Dynamics Beyond Uniform Hyperbolicity

Dynamics Beyond Uniform Hyperbolicity
Author: Christian Bonatti
Publisher: Springer Science & Business Media
Total Pages: 390
Release: 2006-03-30
Genre: Mathematics
ISBN: 3540268448

What is Dynamics about? In broad terms, the goal of Dynamics is to describe the long term evolution of systems for which an "infinitesimal" evolution rule is known. Examples and applications arise from all branches of science and technology, like physics, chemistry, economics, ecology, communications, biology, computer science, or meteorology, to mention just a few. These systems have in common the fact that each possible state may be described by a finite (or infinite) number of observable quantities, like position, velocity, temperature, concentration, population density, and the like. Thus, m the space of states (phase space) is a subset M of an Euclidean space M . Usually, there are some constraints between these quantities: for instance, for ideal gases pressure times volume must be proportional to temperature. Then the space M is often a manifold, an n-dimensional surface for some n

Beyond Partial Differential Equations

Beyond Partial Differential Equations
Author: Horst Reinhard Beyer
Publisher: Springer
Total Pages: 291
Release: 2007-04-10
Genre: Mathematics
ISBN: 3540711295

This book introduces the treatment of linear and nonlinear (quasi-linear) abstract evolution equations by methods from the theory of strongly continuous semigroups. The theoretical part is accessible to graduate students with basic knowledge in functional analysis, with only some examples requiring more specialized knowledge from the spectral theory of linear, self-adjoint operators in Hilbert spaces. Emphasis is placed on equations of the hyperbolic type which are less often treated in the literature.

Beyond the Einstein Addition Law and its Gyroscopic Thomas Precession

Beyond the Einstein Addition Law and its Gyroscopic Thomas Precession
Author: Abraham A. Ungar
Publisher: Springer Science & Business Media
Total Pages: 449
Release: 2012-12-06
Genre: Science
ISBN: 9401091226

"I cannot define coincidence [in mathematics]. But 1 shall argue that coincidence can always be elevated or organized into a superstructure which perfonns a unification along the coincidental elements. The existence of a coincidence is strong evidence for the existence of a covering theory. " -Philip 1. Davis [Dav81] Alluding to the Thomas gyration, this book presents the Theory of gy rogroups and gyrovector spaces, taking the reader to the immensity of hyper bolic geometry that lies beyond the Einstein special theory of relativity. Soon after its introduction by Einstein in 1905 [Ein05], special relativity theory (as named by Einstein ten years later) became overshadowed by the ap pearance of general relativity. Subsequently, the exposition of special relativity followed the lines laid down by Minkowski, in which the role of hyperbolic ge ometry is not emphasized. This can doubtlessly be explained by the strangeness and unfamiliarity of hyperbolic geometry [Bar98]. The aim of this book is to reverse the trend of neglecting the role of hy perbolic geometry in the special theory of relativity, initiated by Minkowski, by emphasizing the central role that hyperbolic geometry plays in the theory.

Crocheting Adventures with Hyperbolic Planes

Crocheting Adventures with Hyperbolic Planes
Author: Daina Taimina
Publisher: CRC Press
Total Pages: 865
Release: 2018-02-19
Genre: Mathematics
ISBN: 1351402196

Winner, Euler Book Prize, awarded by the Mathematical Association of America. With over 200 full color photographs, this non-traditional, tactile introduction to non-Euclidean geometries also covers early development of geometry and connections between geometry, art, nature, and sciences. For the crafter or would-be crafter, there are detailed instructions for how to crochet various geometric models and how to use them in explorations. New to the 2nd Edition; Daina Taimina discusses her own adventures with the hyperbolic planes as well as the experiences of some of her readers. Includes recent applications of hyperbolic geometry such as medicine, architecture, fashion & quantum computing.

Beyond Hyperbolicity

Beyond Hyperbolicity
Author: Mark Hagen
Publisher: Cambridge University Press
Total Pages: 242
Release: 2019-07-11
Genre: Mathematics
ISBN: 1108447295

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

Hyperbolic Manifolds and Discrete Groups

Hyperbolic Manifolds and Discrete Groups
Author: Michael Kapovich
Publisher: Springer Science & Business Media
Total Pages: 486
Release: 2009-08-04
Genre: Mathematics
ISBN: 0817649131

Hyperbolic Manifolds and Discrete Groups is at the crossroads of several branches of mathematics: hyperbolic geometry, discrete groups, 3-dimensional topology, geometric group theory, and complex analysis. The main focus throughout the text is on the "Big Monster," i.e., on Thurston’s hyperbolization theorem, which has not only completely changes the landscape of 3-dimensinal topology and Kleinian group theory but is one of the central results of 3-dimensional topology. The book is fairly self-contained, replete with beautiful illustrations, a rich set of examples of key concepts, numerous exercises, and an extensive bibliography and index. It should serve as an ideal graduate course/seminar text or as a comprehensive reference.

Beyond Geometry

Beyond Geometry
Author: Peter Pesic
Publisher: Courier Corporation
Total Pages: 226
Release: 2007-01-01
Genre: Mathematics
ISBN: 0486453502

Eight essays trace seminal ideas about the foundations of geometry that led to the development of Einstein's general theory of relativity. This is the only English-language collection of these important papers, some of which are extremely hard to find. Contributors include Helmholtz, Klein, Clifford, Poincaré, and Cartan.