[seqfan] Rigidity Paper

[William Keith]

Late last year there was a brief discussion of mechanical rigidity on the
list in connection with a sequence proposed for the Encyclopedia, which was
left somewhat dangling.  Readers interested in that subject may wish to note
a paper I just saw announced on the arXiv that might shed some light on
their questions:

arXiv:1009.3954 (*cross-listing*)
Date: Mon, 20 Sep 2010 21:14:43 GMT   (52kb)

Title: Infinite Bar-Joint Frameworks, Crystals and Operator Theory

Cordially,
William J. Keith