EINSTEIN ALBERT (1879-1955).

Lot 73
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8000 - 10000 EUR
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Result : 12 350EUR
EINSTEIN ALBERT (1879-1955).
Signed autograph letter, signed initials « A.E. », [2 May 1950], to Ernst Gabor STRAUS; 1 page and a half, in-4 format; in German. Scientific letter with formulae and calculations pertaining to the question of compatibility in the theory of relativity. After other equations and calculations, Einstein elaborates a chart (« Schema ») in which fi ve densities are classifi ed according to their values in three columns: Zahl der Feldgrössen, Zahl der Gleichungen, Bianchi Ident[itäten] (Number of fi eld sizes; number of equations; Bianchi identities).
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