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The comment(s) below were originally left at Talk:Ratner's theorems/Comments, and are posted here for posterity. Following several discussions in past years, these subpages are now deprecated. The comments may be irrelevant or outdated; if so, please feel free to remove this section.
It's hard to set the field, good case in point to introduce "Lie theory" and/or "Dynamical systems" field. Arcfrk (talk) 03:59, 22 March 2010 (UTC)[reply]
Last edited at 03:59, 22 March 2010 (UTC).
Substituted at 03:56, 30 April 2016 (UTC)