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The Cauchy Problem in General Relativity
ESI Lectures in Mathematics and Physics

Hans Ringström (KTH Mathematics, Stockholm, Sweden)

The Cauchy Problem in General Relativity

ISBN print 978-3-03719-053-1, ISBN online 978-3-03719-553-6
DOI 10.4171/053
June 2009, 307 pages, softcover, 17 x 24 cm.
42.00 Euro

The general theory of relativity is a theory of manifolds equipped with Lorentz metrics and fields which describe the matter content. Einstein’s equations equate the Einstein tensor (a curvature quantity associated with the Lorentz metric) with the stress energy tensor (an object constructed using the matter fields). In addition, there are equations describing the evolution of the matter. Using symmetry as a guiding principle, one is naturally led to the Schwarzschild and Friedmann–Lemaître–Robertson–Walker solutions, modelling an isolated system and the entire universe respectively. In a different approach, formulating Einstein’s equations as an initial value problem allows a closer study of their solutions. This book first provides a definition of the concept of initial data and a proof of the correspondence between initial data and development. It turns out that some initial data allow non-isometric maximal developments, complicating the uniqueness issue. The second half of the book is concerned with this and related problems, such as strong cosmic censorship.

The book presents complete proofs of several classical results that play a central role in mathematical relativity but are not easily accessible to those wishing to enter the subject. Prerequisites are a good knowledge of basic measure and integration theory as well as the fundamentals of Lorentz geometry. The necessary background from the theory of partial differential equations and Lorentz geometry is included.

Keywords: General relativity, Cauchy problem, strong cosmic censorship, non-linear wave equations

Further Information

Review in Zbl MATH 1169.83003

Review in MR 2527641