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Rappresentazione dello spazio tempo della relatività ristretta. La teoria della relatività ristretta, chiamata anche relatività speciale, fu presentata da Einstein con l'articolo Zur Elektrodynamik bewegter Körper (Sull'elettrodinamica dei corpi in movimento) del 1905, il cui obiettivo era conciliare il principio di relatività galileiano, che include il principio della composizione delle ...
General relativity is a theory of gravitation that was developed by Albert Einstein between 1907 and 1915, with contributions by many others after 1915. According to general relativity, the observed gravitational attraction between masses results from the warping of space and time by those masses. Before the advent of general relativity, Newton ...
The Einstein–Hilbert action in general relativity is the action that yields the Einstein field equations through the stationary-action principle. With the (− + + +) metric signature, the gravitational part of the action is given as [1] where is the determinant of the metric tensor matrix, is the Ricci scalar, and is the Einstein ...
Gravitation is a widely adopted textbook on Albert Einstein 's general theory of relativity, written by Charles W. Misner, Kip S. Thorne, and John Archibald Wheeler. It was originally published by W. H. Freeman and Company in 1973 and reprinted by Princeton University Press in 2017. It is frequently abbreviated MTW (for its authors' last names).
The initial value formulation of general relativity is a reformulation of Albert Einstein 's theory of general relativity that describes a universe evolving over time . Each solution of the Einstein field equations encompasses the whole history of a universe – it is not just some snapshot of how things are, but a whole spacetime: a statement ...
Non-exact solutions in general relativity are solutions of Albert Einstein's field equations of general relativity which hold only approximately. These solutions are typically found by treating the gravitational field, g {\displaystyle g} , as a background space-time, γ {\displaystyle \gamma } , (which is usually an exact solution) plus some small perturbation, h {\displaystyle h} .
18 gen 2019 · General relativity ( GR, also known as the general theory of relativity or GTR) is the geometric theory of gravitation published by Albert Einstein in 1915 and the current description of gravitation in modern physics. General relativity generalizes special relativity and Newton's law of universal gravitation, providing a unified description of ...
