How are mass and density treated in general relativity?
38613
Intuitive understanding of the elements in the stress-energy tensor
33979
How does the curvature of spacetime induce gravitational attraction?
144274
Why mass & energy bend spacetime?
38673
General relativity: For massless particles, is the momentum and velocity 4-vectors equal?
150407
Gravitational wave solutions to the Einstein field equations
1240
Books for general relativity
143244
How can black holes be so dense?
54857
The wave equation in general relativity, special relativity, and Cartesian coordinates
63402
Euler-Lagrange equation in curved spacetime: how to calculate $\partial \mathcal{L}/\partial(\nabla_\nu A_\mu)$?
94004
Boundedness of general relativity Hamiltonian
145003
How can a point-like particle "feel" gravity, if locally the curvature of spacetime is always flat?
6474
How exactly does curved space-time describe the force of gravity?
88019
How can mass affect spacetime?
82624
"Newtonian limit" property of special relativity
33271
Two bodies of finite size treated as two point masses in Newtonian gravity
31369
To which extent is general relativity a gauge theory?
102336
Size and density of neutron stars