> In <slrnktoopj.pkp.hrubin@skew.stat.purdue.edu>, on 07/09/2013 > at 07:17 PM, Herman Rubin <hrubin@skew.stat.purdue.edu> said: > >> Still thinking like geometers or physicists. > > What contemporary geometer would assume 3 dimensions in the definition > of tensor? For that matter, I'm sceptical that a post-Relativity > physicist would.

Physicists use(d) phase (or configuration) spaces, eg the infinitely dimensional Hilbert space in quantum physics since some year 1877