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Non-static spherically symmetric spacetimes with perfect fluid matter are considered and their homothetic Ricci collineations (HRCs) are investigated for degenerate as well as non-degenerate Ricci tensor. The present analysis shows… Click to show full abstract
Non-static spherically symmetric spacetimes with perfect fluid matter are considered and their homothetic Ricci collineations (HRCs) are investigated for degenerate as well as non-degenerate Ricci tensor. The present analysis shows that, for non-degenerate Ricci tensor, the possible number of HRCs admitted by these spacetimes is 5, 6 or 7, while they possess 4, 11 or otherwise infinite number of HRCs when the Ricci tensor is degenerate.
Keywords:
spherically symmetric;
ricci;
non static;
symmetric spacetimes;
spacetimes perfect;
static spherically
Journal Title: Modern Physics Letters A
Year Published: 2018
Link to full text (if available)
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Journal Title: Modern Physics Letters A
Year Published: 2018
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!