156 citations · 905 across the 35 of their papers we have counts for
35 papers
Thought Experiments on Gravitational Forces
Donald Lynden-Bell, Joseph Katz
Large contributions to the near closure of the Universe and to the acceleration of its expansion are due to the gravitation of components of the stress-energy tensor other than its…
A note on dark matter and dark energy
Joseph Katz
Since the geometry of our universe seems to depend very little on baryonic matter, we consider a variational principle involving only dark matter and dark energy which in addition…
Effects of rotating gravitational waves
J. Bicak, J. Katz, T. Ledvinka +1
We study gravitational waves to first and second order in amplitude in vacuum asymptotically flat spacetimes. The Einstein equations are solved to first order and these solutions a…
Toroidal metrics: gravitational solenoids and static shells
Donald Lynden-Bell, Joseph Katz
In electromagnetism a current along a wire tightly wound on a torus makes a solenoid whose magnetic field is confined within the torus. In Einstein's gravity we give a correspondin…
On Fast Linear Gravitational Dragging
D. Lynden-Bell, J. Bičák, J. Katz
A new formula is given for the fast linear gravitational dragging of the inertial frame within a rapidly accelerated spherical shell of deep potential. The shell is charged and is…
Affine Gravity, Palatini Formalism and Charges
Joseph Katz, Gideon I. Livshits
Affine gravity and the Palatini formalism contribute both to produce a simple and unique formula for calculating charges at spatial and null infinity for Lovelock type Lagrangians…