71 citations · 236 across the 20 of their papers we have counts for
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A Smooth Lattice construction of the Oppenheimer-Snyder spacetime
Leo Brewin, Jules Kajtar
We present test results for the smooth lattice method using an Oppenheimer-Snyder spacetime. The results are in excellent agreement with theory and numerical results from other aut…
A brief introduction to Cadabra: a tool for tensor computations in General Relativity
Leo Brewin
Cadabra is a powerful computer program for the manipulation of tensor equations. It was designed for use in high energy physics but its rich structure and ease of use lends itself…
Deriving the ADM 3+1 evolution equations from the second variation of arc length
Leo Brewin
We will show that the ADM 3+1 evolution equations, for a zero shift vector, arise naturally from the equations for the second variation of arc-length.
Riemann Normal Coordinate expansions using Cadabra
Leo Brewin
Riemann normal coordinate expansions of the metric and other geometrical quantities, including the geodesic arc-length, will be presented. All of the results are given to fifth-ord…