(04/25/2010, 09:11 AM)Kouznetsov Wrote: Henryk, it seems to me that such a case can be obtained from the example 5 of the Table 1 of our article

Yes that is right, is polynomially conjugated to , i.e. there exists a polynomial such that , and as we know a superfunction of is , we know that a superfunction of is .

But we dont have a decision criteria when a given polynomial is conjugated to some .

Particularly all polynomials without real fixed point, e.g. , seem not be (real) conjugated to some .