Leo Brewin

Papers

Here are some of my recent preprints and some selected papers (some new, some old).

Evolutions of Gowdy, Brill and Teukolsky initial data on a smooth lattice.

Leo Brewin

Preprint: arXiv:1703.00029

Two dimensional axisymmetric smooth lattice Ricci flow.

Leo Brewin

Preprint: arxiv:1512.03457

Curvature corrected estimates for geodesic arc-length.

Leo Brewin

Preprint: arxiv:1512.03461

A numerical study of the Regge Calculus and Smooth Lattice methods on a Kasner cosmology.

Leo Brewin

Class. Quantum Grav. 32 (2015) 195008

An Einstein-Bianchi system for Smooth Lattice General Relativity. II. 3+1 vacuum spacetimes.

Leo Brewin

Phys.Rev.D. 85. 124046 (2012)

An Einstein-Bianchi system for Smooth Lattice General Relativity. I. The Schwarzschild spacetime.

Leo Brewin

Phys.Rev.D. 85. 124045 (2012)

Fast algorithms for computing defects and their derivatives in the Regge calculus.

Leo Brewin

Class. Quantum Grav. 28 (2011) 185005

A Smooth Lattice construction of the Oppenheimer-Snyder spacetime.

Leo Brewin and Jules Kajtar

Phys.Rev.D. 80. 104004 (2009)

Deriving the ADM 3+1 evolution equations from the second variation of arc length.

Leo Brewin

Phys.Rev.D. 80. 084030 (2009)

Riemann Normal Coordinate expansions using Cadabra.

Leo Brewin

Class. Quantum Grav. 26 (2009) 175017

A brief introduction to Cadabra: a tool for tensor computations in General Relativity.

Leo Brewin

Comp.Phys.Comm. 181(2010) p.489

A simple expression for the ADM mass.

Leo Brewin

Gen.Rel.Grav. 39(2007) p.521

Classroom computer animations of relativistic objects.

Leo Brewin

Preprint: arXiv:physics/0307145

Long term stable integration of a maximally sliced Schwarzschild black hole using a smooth ...

Leo Brewin

Class. Quantum Grav. 19 (2002) p.429

On the convergence of Regge calculus to general relativity.

Leo Brewin and Adrian Gentle

Class. Quantum Grav. 18 (2001) p.517

Is the Regge Calculus a consistent approximation to General Relativity?

Leo Brewin

Gen.Rel.Grav. 32(2000) p.897

An ADM 3+1 formulation of Smooth Lattice General Relativity.

Leo Brewin

Class. Quantum Grav. 15 (1998) p.2427

Riemann Normal Coordinates, Smooth Lattices and Numerical Relativity.

Leo Brewin

Class. Quantum Grav. 15 (1998) p.3085

Particle Paths in a Schwarzschild Spacetime via the Regge Calculus.

Leo Brewin

Class. Quantum Grav. 10 (1993) p.1803

The Gauss-Codacci Equation on a Regge Spacetime. II.

Leo Brewin

Class. Quantum Grav. 10 (1993) p.947

Equivalence of the Regge and Einstein equations for almost flat simplicial spacetimes.

Leo Brewin

Gen.Rel.Grav. Vol.21(1989) p.565

The ADM energy and 3-Momentum for a simplicial space.

Leo Brewin

Phys.Rev.D. Vol.39(1989) p.2258

Marginally trapped surfaces in a simplicial space.

Leo Brewin

Phys.Rev.D. Vol.38(1988) p.3020

The Riemann and Extrinsic curvature tensors in the Regge Calculus.

Leo Brewin

Class. Quantum Grav. 5 (1988) p.1193

Friedmann cosmologies via the Regge Calculus.

Leo Brewin

Class. Quantum Grav. 4 (1987) p.899

Exterior differentiation in the Regge calculus.

Leo Brewin

J.Math.Phys. 27(1986) p.296