Abstract
An invariant correlation and a variational principle are given for the theory of connections and frames introduced in previous papers. The relation of the resultant gravitation theory to Yang's theory is clarified. The resultant equations of motion, which imply a generalized Dirac equation, are used to understand geometrically certain aspects of relativistic quantum theory. The conjecture is proposed that electrornegnetism is related to anSU(2) subgroup. The possible association of the extra generators with strong and weak nuclear forces is discussed.
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González-Martín, G. Physical geometry: A unified theory of gravitation, electromagnetism and other interactions. Gen Relat Gravit 22, 481–500 (1990). https://doi.org/10.1007/BF00756223
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DOI: https://doi.org/10.1007/BF00756223