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gr-qc2012
The gravitational equation in higher dimensions
Naresh Dadhich
Like the Lovelock Lagrangian which is a specific homogeneous polynomial in Riemann curvature, for an alternative derivation of the gravitational equation of motion, it is possible…
astro-ph.HE2012★ 2 cited
Magnetic Penrose Process and Blanford-Zanejk mechanism: A clarification
Naresh Dadhich
The Penrose process (PP) is an ingenious mechanism of extracting rotational energy from a rotating black hole, however it was soon realized that it was not very efficient for its a…
gr-qc2012
A curious spacetime entirely free of centrifugal acceleration
Naresh Dadhich
In the Einstein gravity, besides the usual gravitational and centrifugal potential there is an additional attractive term that couples these two together. It is fun to enquire whet…