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Evaluation of four general-relativity tests for a nearly flat space with spherical symmetry

Оценка четырех опытов общей теории относителъности для почти плоского пространства с сферической симметрией

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Il Nuovo Cimento A (1965-1970)

Summary

The phenomenological-metric method is applied to four tests of general relativity. The difficulty in attaching meaning to anr co-ordinate obstructs the process of determining deviations from flatness by this method. An attempt to alleviate this difficulty by using idealized models of flat and curved space-time does simplify the partial evaluation of the metric of the curved space-time for first-order effects, but the flaw in the definition of ther co-ordinate persists unless the curved space-time is actually flat in the region of interest.

Riassunto

Si applica il metodo della metrica fenomenologica a quattro verifiche della relatività generale. La difficoltà di dare un significato ad una coordinatar ostacola il procedimento di determinare con questo metodo le deviazioni dalla planarità. Un tentativo di alleviare questa difficoltà facendo uso di modelli idealizzati di spazio-tempi piani e curvi semplifica la valutazione parziale della metrica dello spazio-tempo curvo per offetti di primo ordine, ma il difetto nella definizione della coordinatar persiste a meno che lo spazio-tempo curvo non sia effettivamente piano nella regione che interessa.

Резюме

Феноменологический метрический метод применяется к четырем опытам общей теории относителъности. Трудностъ в приписывании смысла координатеr препятствует процессу определения отклонений от плоскости с помощъю зтого метода. Попытка обойти зту трудностъ, посредством идеализированных моделей плоского и искривленного пространстра-времени, упрощает частное вычисление метрики искривленного пространства-времени для зффектов первого порядка, но недостаток в определении координатыr существует, если искривленное пространство-время не является фактически плоскими в рассматриваемой области.

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Brigman, G.H. Evaluation of four general-relativity tests for a nearly flat space with spherical symmetry. Il Nuovo Cimento A (1965-1970) 48, 686–702 (1967). https://doi.org/10.1007/BF02815761

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