On symmetries of generalized Robertson-Walker Space-times and applications
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🧮 math.DG
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generalizedrobertson-walkerspace-timessymmetriesfieldsriccivectoradmitting
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The purpose of the present article is to study and characterize sev- eral types of symmetries of generalized Robertson-Walker space-times. Con- formal vector fields, curvature and Ricci collineations are studied. Many im- plications for existence of these symmetries on generalied Robertson-Walker spacetimes are obtained. Finally, Ricci solitons on generalized Robertson- Walker space-times admitting conformal vector fields are investigated.
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