Summary
We give our reasons for dealing with a 2-metric relativity. Then we give all of the constant solutions for a 5-parameter family of Lagrangian models. These include solutions for which the two null cones do not coincide.
Riassunto
Si forniscono i motivi che inducono a trattare di una relatività a 2 metriche. Quindi si danno tutte le soluzioni costanti per una famiglia di modelli lagrangiani a 5 parametri. Queste comprendono soluzioni per cui i due coni nulli non coincidono.
Резюме
Мы высказываем аргументы в пользу рассмотрения 2-метрической относительности. Затем мы приводим все постоянные решения для 5-параметрического семейства моделей Лагранжианов. Приведенные решения включают решения, для которых два нулевых конуса не совпадают.
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Hammel, W.C., Lubkin, E. Strong and weak gravity: A context for unbiased birefringence. Nuov Cim B 26, 377–395 (1975). https://doi.org/10.1007/BF02738567
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DOI: https://doi.org/10.1007/BF02738567