Nem(z)=z+z^3+qz^4 sheldonison Long Time Fellow Posts: 684 Threads: 24 Joined: Oct 2008 02/06/2016, 11:06 PM (This post was last modified: 02/06/2016, 11:08 PM by sheldonison.) (02/06/2016, 01:41 PM)Kouznetsov Wrote: Hello, colleagues. I have constructed superfunction and abelfnction for the polynomial of special kind, Nem(z)=z+z^3+qz^4, where q is positive parameter. I load the description as http://mizugadro.mydns.jp/2016NEMTSOV/TRY00/23.pdf Dmitrii Kouznetsov. Nemtsov function and its iterates. 2016, in preparation. http://mizugadro.mydns.jp/t/index.php/Nemtsov_function Could anybody criticise it? Dimitrii, This is an example of the parabolic case. There are some links on MSE to the fractional iterates for sin(x), which is a similar problem. In general, the Abel function and the fractional iterates are well known, and have a formal asymptotic series which turns out to have a zero radius of convergence. For example; see http://mathoverflow.net/questions/45608/...onvergence I have not seen the superfunction formal solution though. - Sheldon « Next Oldest | Next Newest »

 Messages In This Thread Nem(z)=z+z^3+qz^4 - by Kouznetsov - 02/06/2016, 01:41 PM RE: Nem(z)=z+z^3+qz^4 - by sheldonison - 02/06/2016, 11:06 PM RE: Nem(z)=z+z^3+qz^4 - by Kouznetsov - 02/07/2016, 04:45 AM

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