Date: May 3, 2013 9:31 PM
Subject: Asymptotics of one function on natural numbers
Below, N is the set of natural numbers.
Consider a function s: N->N such that s(x) = x + 1. Now, if f: N->N is
an arbitrary function, define a mapping from the set of all such
functions to N as given below:
p(f) = c(1)
where c is the composition of functions s and f.
Finally, define a new function g: N->N such that
g(x) = f(x) for all x != f^n(x)
g(x) = p(f) otherwise.
We will use a shorthand notation g = F(f) for the function g defined above.
Consider now the sequence of F repeatedly applied: F, F(F(f)),..., F^k(f),...
Question: how one will study the asymptotics of F^k at k->infinity for
various n and p?