109 citations · 212 across the 10 of their papers we have counts for
10 papers
Computability and Physical Theories
Robert Geroch, James B. Hartle
The familiar theories of physics have the feature that the application of the theory to make predictions in specific circumstances can be done by means of an algorithm. We propose…
The Motion of Small Bodies in Space-time
Robert Geroch, James Owen Weatherall
We consider the motion of small bodies in general relativity. The key result captures a sense in which such bodies follow timelike geodesics (or, in the case of charged bodies, Lor…
Faster Than Light?
Robert Geroch
It is argued that special relativity remains a viable physical theory even when there is permitted signals traveling faster than light.
Equation of Motion of Small Bodies in Relativity
Jurgen Ehlers, Robert Geroch
There is proven a theorem, to the effect that a material body in general relativity, in a certain limit of sufficiently small size and mass, moves along a geodesic.
On Hyperbolic "Theories" of Relativistic Dissipative Fluids
Robert Geroch
It is argued that, at least for the case of Navier-Stokes fluids, the so-called hyperbolic theories of dissipation are not viable.
Relativistic Lagrange Formulation
Robert Geroch, Gabriel Nagy, Oscar Reula
It is well-known that the equations for a simple fluid can be cast into what is called their Lagrange formulation. We introduce a notion of a generalized Lagrange formulation, whic…