EINSTEIN, ALBERT und L. HOPF.Livre Rare Book
Einstein, AlbertBiblio.com
Zur affinen Feldtheorie.
1923317401923. S.Ber. Akad. Wiss. Berl. 1923/ 8. - Berlin Verlag der Akademie der Wissenschaften 1923 8° 4 S. orig. Broschur. First edition. A fine fresh copy in the rare off-print form. Marked with an asterisk by Weil denoting a major paper. "Einstein's attempts to formulate a unified field theory stemmed from his dissatisfaction with the general relativity theory which did not adequately incorporate the electromagnetic field into the geometry of space-time. In 1918 Hermann Weyl had begun investigating the possibility of constructing a unified field theory preserving the dimensionality of space-time while formally altering its geometry making it a special case of the class known as affine geometries. Einstein's first investigation of Weyl's ideas published in the present paper introduced the notion of distant parallelism; however Einstein later rejected Weyl's theory." Weil No. 132; Schilpp--Shields No. 171; Alicke No.113; Norman Library 698; Boni 141 unknown
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