All Spacetimes Beyond Einstein
by Frederic P. Schuller
Publisher: arXiv 2011
Number of pages: 44
Which geometries on a smooth manifold (apart from Lorentzian metrics) can serve as a spacetime structure? This question is comprehensively addressed from first principles in eight lectures, exploring the kinematics and gravitational dynamics of all tensorial geometries on a smooth manifold that can carry predictive matter equations, are time-orientable, and allow to distinguish positive from negative particle energies.
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by H. B. Tilton, F. Smarandache - Pima College Press
These are the proceedings of the Conference at Pima Community College, East Campus, February 18, 2005, at which six papers were presented. Disciplines represented: astronomy, computer science, engineering physics and mathematics.
by G. Y. Rainich - Edwards Brothers
We may consider Geometry as a first attempt at a study of the outside world. It may be considered as a system which reflects our experiences with features of the outside world, namely features connected with the displacements of rigid bodies.
by L. Bolton - E.P. Dutton & Co.
This little book gives a remarkably readable and intelligible account of the theory of relativity. The author is presenting his material without presupposing more than elementary algebra and the elements of plane geometry.
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.