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Comment on Ricci Collineations for spherically symmetric space-times

Pantelis S. Apostolopoulos·Michael Tsamparlis
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Abstract

It is shown that the results of the paper by Contreras et al. [Contreras, G., Nunez, L. A., Percoco, U. "Ricci Collineations for Non-degenerate, Diagonal and Spherically Symmetric Ricci Tensors" (2000) Gen. Rel. Grav. 32, 285-294] concerning the Ricci Collineations in spherically symmetric space-times with non-degenerate and diagonal Ricci tensor do not cover all possible cases. Furthermore the complete algebra of Ricci Collineations of certain Robertson-Walker metrics of vanishing spatial curvature are given.

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Pantelis S. Apostolopoulos, Michael Tsamparlis. 2001-08-25. Comment on Ricci Collineations for spherically symmetric space-times. https://doi.org/10.1023/a%3A1015214404912

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