The Physical Structure of the EnergyMomentum Tensor in General Relativity.
Abstract
Available from UMI in association with The British Library. The physical structure of the energymomentum tensor is of great importance in General Relativity. In the last few years many people have discussed various aspects of this subject. The present study discusses some of the algebraic and geometric interpretations of these physical structures. It will be shown how a systematic use of the theory of the classification of energymomentum tensors greatly simplifies many problems. In chapter one, the basic equations of General Relativity will be introduced and a notation will be laid down. In chapter two, a brief summary of the classification of the Weyl tensor and energymomentum tensor will be given. The wellknown energy conditions will be introduced here and their algebraic restrictions on the energymomentum tensor given. In chapter three, the energymomentum tensor corresponding to various combinations of physical fields will be given, discussed and classified. A comprehensive study of the energymomentum tensor of a general viscous fluid with heat flow will also be given. A uniqueness problem arises in the physical interpretation of some of these energy momentum tensors and this is studied in detail in chapter four. Chapter five studies the problem of the inheritance of metric symmetries in the energymomentum tensor. The algebraic classifications given in chapters two and three lead to a convenient solution of this problem. Finally, chapter six shows how the Segre type classification of the energymomentum tensor leads to a simple electromagnetic analogue of the wellknown vacuum "Peeling" theorem. Chapters three, four, five and six contain the bulk of the new results contained in this thesis.
 Publication:

Ph.D. Thesis
 Pub Date:
 1985
 Bibcode:
 1985PhDT........44N
 Keywords:

 Physics: Elementary Particles and High Energy