Exotic Smoothness and Physics: Differential Topology and Spacetime models free download online
Title: Exotic Smoothness and Physics: Differential Topology and Spacetime models Author(s): Torsten Asselmeyer-Maluga, Carl H.Brans Pages: 336 Publisher: World Scientific Publishing Publication date: 2007 Language: English Format: ISBN-10: 981024195X ISBN-13: 978-981024195 Description: The recent revolution in differential topology related to the discovery of non-standard ("exotic") smoothness structures on topologically trivial manifolds such as R^4 suggests many exciting opportunities for applications of potentially deep importance for the spacetime models of theoretical physics, especially general relativity. This rich panoply of new differentiable structures lies in the previously unexplored region between topology and geometry. Just as physical geometry was thought to be trivial before Einstein, physicists have continued to work under the tacit - but now shown to be incorrect - assumption that differentiability is uniquely determined by topology for simple four-manifolds. Since diffeomorphisms are the mathematical model for physical coordinate transformations, Einstein's relativity principle requires that these models be physically inequivalent. This book provides an introductory survey of some of the relevant mathematics and presents preliminary results and suggestions for further applicatons to spacetime models.
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