The Geometry of Dynamical Triangulations

The Geometry of Dynamical Triangulations PDF Author: Jan Ambjorn
Publisher: Springer Science & Business Media
ISBN: 3540694277
Category : Science
Languages : en
Pages : 207

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Book Description
The express purpose of these lecture notes is to go through some aspects of the simplicial quantum gravity model known as the dynamical triangula tions approach. Emphasis has been on laying the foundations of the theory and on illustrating its subtle and often unexplored connections with many distinct mathematical fields ranging from global Riemannian geometry, to moduli theory, number theory, and topology. Our exposition will concentrate on these points so that graduate students may find in these notes a useful exposition of some of the rigorous results one can -establish in this field and hopefully a source of inspiration for new exciting problems. We try as far as currently possible to expose the interplay between the analytical aspects of dynamical triangulations and the results of Monte Carlo simulations. The techniques described here are rather novel and allow us to address points of current interest in the subject of simplicial quantum gravity while requiring very little in the way of fancy field-theoretical arguments. As a consequence, these notes contain mostly original and until now unpublished material, which will hopefully be of interest both to the expert practitioner and to graduate students entering the field. Among the topics addressed here in considerable detail are the following. (i) An analytical discussion of the geometry of dynamical triangulations in dimensions n == 3 and n == 4.

The Geometry of Dynamical Triangulations

The Geometry of Dynamical Triangulations PDF Author: Jan Ambjorn
Publisher: Springer Science & Business Media
ISBN: 3540694277
Category : Science
Languages : en
Pages : 207

Get Book Here

Book Description
The express purpose of these lecture notes is to go through some aspects of the simplicial quantum gravity model known as the dynamical triangula tions approach. Emphasis has been on laying the foundations of the theory and on illustrating its subtle and often unexplored connections with many distinct mathematical fields ranging from global Riemannian geometry, to moduli theory, number theory, and topology. Our exposition will concentrate on these points so that graduate students may find in these notes a useful exposition of some of the rigorous results one can -establish in this field and hopefully a source of inspiration for new exciting problems. We try as far as currently possible to expose the interplay between the analytical aspects of dynamical triangulations and the results of Monte Carlo simulations. The techniques described here are rather novel and allow us to address points of current interest in the subject of simplicial quantum gravity while requiring very little in the way of fancy field-theoretical arguments. As a consequence, these notes contain mostly original and until now unpublished material, which will hopefully be of interest both to the expert practitioner and to graduate students entering the field. Among the topics addressed here in considerable detail are the following. (i) An analytical discussion of the geometry of dynamical triangulations in dimensions n == 3 and n == 4.

Handbook of Teichmüller Theory

Handbook of Teichmüller Theory PDF Author: Athanase Papadopoulos
Publisher: European Mathematical Society
ISBN: 9783037190296
Category : Mathematics
Languages : en
Pages : 812

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Book Description
The Teichmuller space of a surface was introduced by O. Teichmuller in the 1930s. It is a basic tool in the study of Riemann's moduli spaces and the mapping class groups. These objects are fundamental in several fields of mathematics, including algebraic geometry, number theory, topology, geometry, and dynamics. The original setting of Teichmuller theory is complex analysis. The work of Thurston in the 1970s brought techniques of hyperbolic geometry to the study of Teichmuller space and its asymptotic geometry. Teichmuller spaces are also studied from the point of view of the representation theory of the fundamental group of the surface in a Lie group $G$, most notably $G=\mathrm{PSL}(2,\mathbb{R})$ and $G=\mathrm{PSL}(2,\mathbb{C})$. In the 1980s, there evolved an essentially combinatorial treatment of the Teichmuller and moduli spaces involving techniques and ideas from high-energy physics, namely from string theory. The current research interests include the quantization of Teichmuller space, the Weil-Petersson symplectic and Poisson geometry of this space as well as gauge-theoretic extensions of these structures. The quantization theories can lead to new invariants of hyperbolic 3-manifolds. The purpose of this handbook is to give a panorama of some of the most important aspects of Teichmuller theory. The handbook should be useful to specialists in the field, to graduate students, and more generally to mathematicians who want to learn about the subject. All the chapters are self-contained and have a pedagogical character. They are written by leading experts in the subject.

Selected Applications of Geometry to Low-Dimensional Topology

Selected Applications of Geometry to Low-Dimensional Topology PDF Author: Michael H. Freedman
Publisher: American Mathematical Soc.
ISBN: 0821870009
Category : Mathematics
Languages : en
Pages : 93

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Book Description
Based on lectures presented at Pennsylvania State University in February 1987, this work begins with the notions of manifold and smooth structures and the Gauss-Bonnet theorem, and proceeds to the topology and geometry of foliated 3-manifolds. It also explains why four-dimensional space has special attributes.

Lumen Naturae

Lumen Naturae PDF Author: Matilde Marcolli
Publisher: MIT Press
ISBN: 0262043904
Category : Mathematics
Languages : en
Pages : 390

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Book Description
Exploring common themes in modern art, mathematics, and science, including the concept of space, the notion of randomness, and the shape of the cosmos. This is a book about art—and a book about mathematics and physics. In Lumen Naturae (the title refers to a purely immanent, non-supernatural form of enlightenment), mathematical physicist Matilde Marcolli explores common themes in modern art and modern science—the concept of space, the notion of randomness, the shape of the cosmos, and other puzzles of the universe—while mapping convergences with the work of such artists as Paul Cezanne, Mark Rothko, Sol LeWitt, and Lee Krasner. Her account, focusing on questions she has investigated in her own scientific work, is illustrated by more than two hundred color images of artworks by modern and contemporary artists. Thus Marcolli finds in still life paintings broad and deep philosophical reflections on space and time, and connects notions of space in mathematics to works by Paul Klee, Salvador Dalí, and others. She considers the relation of entropy and art and how notions of entropy have been expressed by such artists as Hans Arp and Fernand Léger; and traces the evolution of randomness as a mode of artistic expression. She analyzes the relation between graphical illustration and scientific text, and offers her own watercolor-decorated mathematical notebooks. Throughout, she balances discussions of science with explorations of art, using one to inform the other. (She employs some formal notation, which can easily be skipped by general readers.) Marcolli is not simply explaining art to scientists and science to artists; she charts unexpected interdependencies that illuminate the universe.

Quantum Geometry

Quantum Geometry PDF Author: Jan Ambjørn
Publisher: Cambridge University Press
ISBN: 0521461677
Category : Science
Languages : en
Pages : 377

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Book Description
Describes random geometry and applications to strings, quantum gravity, topological field theory and membrane physics.

Mathematics and Computer Science II

Mathematics and Computer Science II PDF Author: Brigitte Chauvin
Publisher: Birkhäuser
ISBN: 3034882114
Category : Mathematics
Languages : en
Pages : 526

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Book Description
This is the second volume in a series of innovative proceedings entirely devoted to the connections between mathematics and computer science. Here mathematics and computer science are directly confronted and joined to tackle intricate problems in computer science with deep and innovative mathematical approaches. The book serves as an outstanding tool and a main information source for a large public in applied mathematics, discrete mathematics and computer science, including researchers, teachers, graduate students and engineers. It provides an overview of the current questions in computer science and the related modern and powerful mathematical methods. The range of applications is very wide and reaches beyond computer science.

Computing in Euclidean Geometry

Computing in Euclidean Geometry PDF Author: Ding-Zhu Du
Publisher: World Scientific
ISBN: 9789810218768
Category : Mathematics
Languages : en
Pages : 520

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Book Description
This book is a collection of surveys and exploratory articles about recent developments in the field of computational Euclidean geometry. Topics covered include the history of Euclidean geometry, Voronoi diagrams, randomized geometric algorithms, computational algebra, triangulations, machine proofs, topological designs, finite-element mesh, computer-aided geometric designs and Steiner trees. This second edition contains three new surveys covering geometric constraint solving, computational geometry and the exact computation paradigm.

Foundations of Space and Time

Foundations of Space and Time PDF Author: Jeff Murugan
Publisher: Cambridge University Press
ISBN: 0521114403
Category : Science
Languages : en
Pages : 453

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Book Description
Encapsulates the latest debates on this topic, giving researchers and graduate students an up-to-date view of the field.

Coarse Graining in Quantum Gravity: Bridging the Gap between Microscopic Models and Spacetime-Physics

Coarse Graining in Quantum Gravity: Bridging the Gap between Microscopic Models and Spacetime-Physics PDF Author: Astrid Eichhorn
Publisher: Frontiers Media SA
ISBN: 2889710491
Category : Science
Languages : en
Pages : 298

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Book Description


General Relativity And Gravitational Physics: Proceedings Of The 12th Italian Conference

General Relativity And Gravitational Physics: Proceedings Of The 12th Italian Conference PDF Author: M Bassan
Publisher: World Scientific
ISBN: 9814546070
Category :
Languages : en
Pages : 514

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Book Description
This volume contains the proceedings of the 12th Italian Conference on General Relativity and Gravitational Physics, held in Rome in September 1996. Following the established pattern, the conference was structured such that there were a number of invited lectures and three workshops in parallel sessions regarding astrophysics, general relativity (both classical and quantum) and experimental and observational gravity.