Some differential (and discrete) geometry
Γ isn’t a tensor but an affine connection is!?
Considering the Event Horizon
Progress along a null geodesic?
Feeble connection to OS ideas
A crazy idea about Dark Matter
Constant acceleration and its Event Horizon
Geometry of Special Relativity
Big Bang in 1D & 3D
Lens Thirring Rotation
Gödel’s Metric
See Notes on Woit’s book
and on Kennifick’s
Queasy Space
finding a uniformly negatively curved 3 space in flat 4D space time
Summation Convention
sounds and
pictures
at other sites.
Energy Localization
Computing GR
External: Regge, T. “General relativity without coordinates”, Nuovo Cimento 19, 558–571
Visualizing Mesh Adaption Metric Tensors
Computations for the Regge Calculus
Introduction to some running code
Notions and Names
Minkowski Problem
Fanciful Link between Relativity & Numerical
Analysis
Fragmentary notes on strength of equations.
Elementary Geometry on Simplicial Complexes
Some ideas for doing the Cauchy Problem
Tracing a Geodesic; geodesic inside zone
carrying a tensor across a facet
Boundary of Complex;
Scaffold
Early Code Fragments
Making movies of the Simulation
Measuring Curvature
Unit Tests
System Tests