Structures In The Universe By Exact Methods
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Structures in the Universe by Exact Methods
Author | : Krzysztof Bolejko |
Publsiher | : Cambridge University Press |
Total Pages | : 257 |
Release | : 2010 |
Genre | : Science |
ISBN | : 9780521769143 |
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Reviews developments in applications of inhomogeneous models to cosmology, for graduate students and academic researchers in astrophysics.
Structures in the Universe by Exact Methods
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Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 242 |
Release | : 2010 |
Genre | : Cosmology |
ISBN | : 1107209366 |
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As the structures in our Universe are mapped out on ever larger scales, and with increasing detail, the use of inhomogeneous models is becoming an essential tool for analyzing and understanding them. This book reviews a number of important developments in the application of inhomogeneous solutions of Einstein's field equations to cosmology. It shows how inhomogeneous models can be employed to study the evolution of structures such as galaxy clusters and galaxies with central black holes, and to account for cosmological observations like supernovae dimming, the cosmic microwave background, baryon acoustic oscillations or the dependence of the Hubble parameter on redshift within classical general relativity. Whatever `dark matter' and `dark energy' turn out to be, inhomogeneities exist on many scales and need to be investigated with all appropriate methods. This book is of great value to all astrophysicists and researchers working in cosmology, from graduate students to academic researchers.
Causality Measurement Theory and the Differentiable Structure of Space Time
Author | : R. N. Sen |
Publsiher | : Cambridge University Press |
Total Pages | : 413 |
Release | : 2010-02-11 |
Genre | : Science |
ISBN | : 9781139485371 |
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Introducing graduate students and researchers to mathematical physics, this book discusses two recent developments: the demonstration that causality can be defined on discrete space-times; and Sewell's measurement theory, in which the wave packet is reduced without recourse to the observer's conscious ego, nonlinearities or interaction with the rest of the universe. The definition of causality on a discrete space-time assumes that space-time is made up of geometrical points. Using Sewell's measurement theory, the author concludes that the notion of geometrical points is as meaningful in quantum mechanics as it is in classical mechanics, and that it is impossible to tell whether the differential calculus is a discovery or an invention. Providing a mathematical discourse on the relation between theoretical and experimental physics, the book gives detailed accounts of the mathematically difficult measurement theories of von Neumann and Sewell.
The Large Scale Structure of Space Time
Author | : Stephen W. Hawking,George F. R. Ellis |
Publsiher | : Cambridge University Press |
Total Pages | : 414 |
Release | : 2023-02-16 |
Genre | : Science |
ISBN | : 9781009253185 |
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First published in 1973, this influential work discusses Einstein's General Theory of Relativity to show how two of its predictions arise: first, that the ultimate fate of many massive stars is to undergo gravitational collapse to form 'black holes'; and second, that there was a singularity in the past at the beginning of the universe. Starting with a precise formulation of the theory, including the necessary differential geometry, the authors discuss the significance of space-time curvature and examine the properties of a number of exact solutions of Einstein's field equations. They develop the theory of the causal structure of a general space-time, and use it to prove a number of theorems establishing the inevitability of singularities under certain conditions. A Foreword contributed by Abhay Ashtekar and a new Preface from George Ellis help put the volume into context of the developments in the field over the past fifty years.
Exact Solutions in Three Dimensional Gravity
Author | : Alberto A. García-Díaz |
Publsiher | : Cambridge University Press |
Total Pages | : 453 |
Release | : 2017-09-07 |
Genre | : Science |
ISBN | : 9781107147898 |
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A self-contained and unique text systematically presenting the determination and classification of exact solutions in three-dimensional Einstein gravity. Including contributions by David Chow, Christopher N. Pope and Ergin Sezgin (chapters 16-19).
Conformal Methods in General Relativity
Author | : Juan A. Valiente Kroon |
Publsiher | : Cambridge University Press |
Total Pages | : 627 |
Release | : 2023-01-31 |
Genre | : Science |
ISBN | : 9781009291347 |
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This 2016 volume, now reissued as OA, shows how conformal methods can be used to study Einstein's theory of gravity.
Boundary Conformal Field Theory and the Worldsheet Approach to D Branes
Author | : Andreas Recknagel,Volker Schomerus |
Publsiher | : Cambridge University Press |
Total Pages | : 349 |
Release | : 2013-11-28 |
Genre | : Science |
ISBN | : 9781107511804 |
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Boundary conformal field theory is concerned with a class of two-dimensional quantum field theories which display a rich mathematical structure and have many applications ranging from string theory to condensed matter physics. In particular, the framework allows discussion of strings and branes directly at the quantum level. Written by internationally renowned experts, this comprehensive introduction to boundary conformal field theory reaches from theoretical foundations to recent developments, with an emphasis on the algebraic treatment of string backgrounds. Topics covered include basic concepts in conformal field theory with and without boundaries, the mathematical description of strings and D-branes, and the geometry of strongly curved spacetime. The book offers insights into string geometry that go beyond classical notions. Describing the theory from basic concepts, and providing numerous worked examples from conformal field theory and string theory, this reference is of interest to graduate students and researchers in physics and mathematics.
Classical Measurements in Curved Space Times
Author | : Fernando de Felice,Donato Bini |
Publsiher | : Cambridge University Press |
Total Pages | : 326 |
Release | : 2010-07-29 |
Genre | : Science |
ISBN | : 9781139491594 |
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The theory of relativity describes the laws of physics in a given space-time. However, a physical theory must provide observational predictions expressed in terms of measurements, which are the outcome of practical experiments and observations. Ideal for readers with a mathematical background and a basic knowledge of relativity, this book will help readers understand the physics behind the mathematical formalism of the theory of relativity. It explores the informative power of the theory of relativity, and highlights its uses in space physics, astrophysics and cosmology. Readers are given the tools to pick out from the mathematical formalism those quantities that have physical meaning and which can therefore be the result of a measurement. The book considers the complications that arise through the interpretation of a measurement, which is dependent on the observer who performs it. Specific examples of this are given to highlight the awkwardness of the problem.