Talk:Functional square root

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Mathematics grading: Stub Class Importance unassessed. Field unassessed.

I'm having trouble finding relevant material for this article, with the exception of a few Usenet posts and the like. In particular, I can't find anything informative on Kneser's result. Maybe I'm using the wrong term? Help would be appreciated. Fredrik Johansson 15:59, 29 September 2006 (UTC)