Disruption of Cosmic String Wakes by Gaussian Fluctuations
  We study the stability of cosmic string wakes against the disruption by the
dominant Gaussian fluctuations which are present in cosmological models. We
find that for a string tension given by $G \mu = 10^{-7}$ wakes remain locally
stable until a redshift of $z = 6$, and for a value of $G \mu = 10^{-14}$ they
are stable beyond a redshift of $z = 20$. We study a global stability criterion
which shows that wakes created by strings at times after $t_{eq}$ are
identifiable up to the present time, independent of the value of $G \mu$.
Taking into account our criteria it is possible to develop strategies to search
for the distinctive position space signals in cosmological maps which are
induced by wakes.
