deletions | additions       diff --git a/Sampling Spatial.tex b/Sampling Spatial.tex  index b30c4cb..ce0b6ba 100644  --- a/Sampling Spatial.tex  +++ b/Sampling Spatial.tex 
...
In prior work and this paper, indicator functions provide the basis to partition the spatial domain into non-overlapping, evenly spaced, cuboidal volumes [ref]; an investigation of other basis functions are currently underway (e.g. wavelets). Equation ~\ref{??} defines the basis for the spatial domain as $\chi_{s}(x)$. $s$ is an index to a unique cuboidal volume $\omega_{s}$ in the spatial domain with the properties   \begin{equation} \label{eq-cubevol} \label{eq:cubevol}  \omega_{s} \cap \omega_{t} =   \begin{cases}   \omega_{s}, & \mbox{if } \mbox{s=t}