Jack Campin wrote:
> 
> After meeting Richard Robinson at the Newcastleton festival the
> weekend before last and playing a few tunes in the same sessions
> (there can't have been many Scottish tune sessions featuring two
> clarinets before) it occurred to me that probably most people on
> this list have played with somebody else on it at least once.
> 
> In mathematics and computer science, this sort of relationship is
> measured by your "Erdos number".  Paul Erdos co-authored papers
> with a phenomenal number of people.  Erdos has Erdos number 0.
> If you co-authored a paper with Erdos, you have Erdos number 1.
> Your Erdos number is 1 + the minimal Erdos number of anyone you
> co-authored a paper with.
> 
> In the ABC world, Chris Walshaw is the obvious zero point.
> 
> I've played with Julian Goodacre who has played with Chris, so
> I have a Walshaw number of 2.  That means Wil Macaulay and
> Richard Robinson both have Walshaw numbers no higher than 3, but
> perhaps they're lower by some other path.
> 
> Anyone else know theirs?
> 
> -----------------------------------------------------------------------------
> Jack Campin: 11 Third Street, Newtongrange, Midlothian EH22 4PU; 0131 6604760
> <http://www.purr.demon.co.uk/jack>     *     food intolerance data & recipes,
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I never met Paul Erdos, but the paper he wrote ALONE on minimization of
optical aberations in a three element system is fantastic. I have a
fairly recent biography of him as 'The Man Who Loved Numbers'.  

Bruce Olson

Roots of Folk: Old British Isles popular and folk songs, tunes, 
and broadside ballads at Bruce Olson's website <A
href="http://www.erols.com/olsonw";> Click </a>
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