Zwei strenge statische Lösungen der Feldgleichungen der einheitlichen Feldtheorie.

£300 · Offered by Maggs Bros Ltd

An original offprint of Einstein’s article ‘Two Rigorous Static Solutions to the Field Equations of the Unified Field Theory’ co-authored with the Austrian mathematician Walther Mayer (1887-1948).

Found via Rare Books Intel, a search across rare-book dealers, auction houses and marketplaces worldwide.