Annoying typo
There is a really annoying typo in the main paper.
On page 6 in Equation (2), the definition of \bar{K} is (was) wrong.
The correct definition is:
\bar K = - (I - \frac{1}{n} \one\one') C_{amp} (I - \frac{1}{n} \one\one')
where C_{amp} is the amplified commute distance matrix.
In the old version we had mistakenly replaced C_amp by R.
I corrected it in the pdf on my webpage, but there might still be versions
floating in the web that contain the wrong formula.