Summary
The embedding of the Schwarzschild line element in a flat space-time of six dimensions is univocally worked out on the basis of i) the static nature of the Schwarzschild field, ii) the Minkowski structure of the flat space-time and iii) the requirement that the embedding itself be analytic on the whole interval 0<r<∞. We arrive then at Fronsdal's embedding, which is therefore the sole possible complete embedding of the Schwarzschild solution in the six-dimensional Minkowski space-time.
Riassunto
L’embedding dell’elemento di linea di Schwarzschild in uno spazio tempo piatto a sei dimensioni è univocamente derivato dalla staticità del campo di Schwarzschild, dalla struttura Minkowskiana dello spazio tempo piatto e dalla richiesta che l'embedding stesso sia analitico nell'intero intervallo 0<r<∞. Arriviamo allora all'embedding di Fronsdal, che risulta quindi essere l'unico possibile embedding completo della soluzione di Schwarzschild nello spazio tempo di Minkowski a sei dimensioni.
Резюме
Разрабатывается внедрение линейного элемента Шварцшильда в плоское пространство-время шести измерений, используя 1) статическую природу поля Шварцшильда, 2) структуру Минковского для плоского пространства-времени и 3) требуя, чтобы само внедрение было аналитическим в интервале 0<r<∞. Затем мы приходим к внедрению фронсдала, которое является единственно возможным внедрением решения Шварцшильда в шести-мерное пространство-время Минковского.
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References
We choose units so thatG=c=2m=1.
E. Kasner:Am. J. Math.,43, 126 (1921).
E. Kasner:Am. J. Math.,43 130 (1921).
C. Fronsdal:Phys. Rev.,116, 778 (1959).
The first general discovery of the global structure of the Schwarzschild geometry is due toJ. L. Synge:Proc. R. Ir. Acad. Sect. A,53, 83 (1950).
M. Ferraris andM. Francaviglia:Gen. Rel. Grav.,10, 283 (1979);12, 791 (1980). For a general discussion of isometric embeddings of solutions of Einstein's field equations into flat space-times, see alsoH. F. Goenner inGRG Einstein Commemorative Volume, edited byA. Held (Plenum, New York, N.Y., 1980).
For a formal determination, see, for example,W. Rindler:Phys. Rev.,119, 2082 (1960).
W. Rindler:Am. J. Phys.,34, 1174 (1966).
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Sassi, G. Analytical derivation of the embedding of the Schwarzschild solution in a flat space-time. Nuov Cim B 102, 511–516 (1988). https://doi.org/10.1007/BF02728782
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DOI: https://doi.org/10.1007/BF02728782