On the non-linearity of the subsidiary systems
arXiv:gr-qc/0504129 · doi:10.1088/0264-9381/22/14/L02
Abstract
In hyperbolic reductions of the Einstein equations the evolution of gauge conditions or constraint quantities is controlled by subsidiary systems. We point out a class of non-linearities in these systems which may have the potential of generating catastrophic growth of gauge resp. constraint violations in numerical calculations.
7 pages