What it look like if you took all of the Mathematics articles from JSTOR, the digital journal archive, and mapped co-authorship of the papers? It would look something like this. Interesting to note, that while the distribution does hold to the small world network distribution exponent, there’s some “peakiness” about it that may suggest it’s not really one network, but the merging of several. Given the role of mathematics on so many other subjects, that would not be a surprise.
Zoomable image with names, after the jump.
[typo in JSTOR name fixed 2010-09-30]