Hermann Weyl’s Raum — Zeit — Materie and a General Introduction to His Scientific Work

Abstract

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Theory of Electro Relativity

“…In view of later developments in this domain, of particular interest are the theories of Hermann Weyl from 1919, who introduced the concept of an (electromagnetic) gauge field in a classical field theory [7] and, two years later, that of Theodor Kaluza, who extended General Relativity to five dimensions [8]. Continuing in this latter direction, Oscar Klein, in 1926, proposed that the fourth spatial dimension be curled up into a small, unobserved circle.…”