79 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
Showing 2017Show all
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gr-qc2017★ 22 cited
A Type D Non-Vacuum Spacetime with Causality Violating Curves, and its Physical Interpretation
Faizuddin Ahmed
We present a topologically trivial, non-vacuum solution of the Einstein's field equations in four-dimensions, which is regular everywhere. The metric admits circular closed timelik…
gr-qc2017★ 20 cited
A type N radiation field solution with in a curved space-time and closed time-like curves
Faizuddin Ahmed
An anti-de Sitter background four-dimensional type N solution of the Einstein's field equations, is presented. The matter-energy content pure radiation field satisfies the null ene…