

4 Numerical Issues
In this section we discuss some of the issues that have to be
confronted in a numerical implementation of the Einstein equations
and, in particular, of the conformal field equations to solve the
hyperboloidal initial value problem. The material presented in this
section is based to a large extent on work by Hübner [89
, 90
, 91
, 92
, 94
, 95
] and
Frauendiener [45
, 46
, 47
, 48
, 49
]. These are also the
references which should be consulted for a more detailed discussion
of the various numerical schemes. The presentation here will be
rather cursory in order to keep it reasonably short.

