Mathematics of Relativity: Lecture Notes
by G. Y. Rainich
Publisher: Edwards Brothers 1932
Number of pages: 222
We may consider Geometry as a first attempt at a study of the outside world. It may be considered as a deductive system which reflects (in the sense explained above, that is of the existence of a correspondence, etc.) very well our experiences with some features of the outside world, namely features connected with the displacements of what we call rigid bodies. We see at once how much is left out in such a study; in the first place, time is almost entirely left out: in trying to bring into coincidence two triangles we are not interested in whether we move one slowly or rapidly; in describing a circle we are not concerned with uniformity of motion.
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by Edwin Emery Slosson - Brace and Howe
What is this theory of relativity and why is it so important? The mathematics of it are too much for most of us, but we can get some notion of it by a familiar illustration. A discussion of the more intelligible features of the theory of relativity.
by A. A. Logunov - arXiv
In the framework of the special theory of relativity, the relativistic theory of gravitation is constructed. The energy-momentum tensor density of all the matter fields (including gravitational one) is treated as a source of the gravitational field.
This book examines the evolution of the principle of relativity in its classical, special, and general incarnations, with the aim of showing how it has repeatedly inspired advances in our understanding of the physical world.
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There is a constant demand for information about this much-debated topic of relativity. In order to make a popular explanation of this far-reaching theory available, the present book is published. (first published in 1920)