Summary
By using the notion of exterior admissible forms, the classical, geometrical structure of a possible Lie-admissible theory of gravity is investigated. In particular, it is shown that a nonsymmetric metric tensor and a nonmetric connection are included naturally in this framework, so that the nonsymmetric and metric-affine theories of gravity may be interpreted as particular cases of a more general Lie-admissible theory.
Riassunto
Usando la nozione di forme esterne ammissibili, si studia la struttura classica e geometrica di una possibile teoria Lie-ammissibile della gravità. In particolare, si mostra che un tensore metrico non simmetrico ed una connessione non metrica, possono essere inclusi in modo naturale in questa struttura, cosí che le teorie gravitazionali non simmetriche e metriche-affini possono essere interpretate come casi particolari di una piú generale teoria Lie-ammissibile.
Резюме
Используя понятие внешне-допустимых форм, предлагается классическая геометрическая структура возможной Ли-допустимой теории гравитации. В частности, показывается, что в этом подходе естественным образом включается несимметрический метрический тензор и неметрическая связь. Таким образом, несимметричные и метричные афинные теории гравитации могут быть интерпретированы, как частные случаи более общей Ли-допустимой теории.
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Gasperini, M. On a Lie-admissible theory of gravity. Nuov Cim B 81, 7–20 (1984). https://doi.org/10.1007/BF02721635
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DOI: https://doi.org/10.1007/BF02721635