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 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.
by Benjamin Crowell - LightAndMatter.com
This textbook is a nonmathematical presentation of Einstein's theories of special and general relativity, including a brief treatment of cosmology. It is a set of lecture notes for the author's course Relativity for Poets at Fullerton College.
by Albert Einstein - Princeton University Press
A condensed unified presentation intended for one who has already digested the mechanics of tensor theory and physical basis of relativity. Einstein's little book serves as an excellent tying-together of loose ends and as a survey of the subject.
by G. B. Jeffery - Methuen & Company
Contents: The origins of the theory; Michelson-Morley experiment and the Lorentz transformation; Laws of motion and electro-magnetism; Restricted principle of relativity and some consequences; Equivalence hypothesis; Four-dimensional continuum; etc.