Comment on Ricci Collineations for type B warped space-times
Michael Tsamparlis, Pantelis S. Apostolopoulos
TL;DR
This paper provides counterexamples to previous claims about Ricci collineations in type B warped space-times, confirming some results but highlighting their limited generality.
Contribution
It introduces counterexamples demonstrating that earlier results on Ricci collineations are not universally applicable.
Findings
Previous results are correct but not general
Counterexamples challenge the universality of earlier theorems
Highlights the need for more comprehensive analysis
Abstract
We present two counterexamples to the paper by Carot et al. in Gen. Rel. Grav. 1997, 29, 1223 and show that the results obtained are correct but not general.
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