[FOM] Analyticity of half-exponentials

Tjark Weber tjark.weber at gmx.de
Thu Apr 19 11:02:53 EDT 2007

On Wednesday 18 April 2007 17:31, Timothy Y. Chow wrote:
> I have made Kneser's paper available at
> http://alum.mit.edu/www/tchow/kneser.pdf
> Unfortunately, since I don't read German, I can't answer your question
> directly, but presumably the answer is in there somewhere.

It is, and the answer to the original question (according to what H. Kneser 
writes in Section §6 of his paper) is "yes".  His solution to f(f(x)) = e^x 
is strictly increasing.


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