06/17/2022, 11:49 PM
(06/17/2022, 10:21 PM)JmsNxn Wrote: Paulsen and Cowgill's paper is a mathematical paper, which constructs Kneser, and gives a uniqueness condition for Kneser. They don't really make an algorithm, per se, just explain how to grab Taylor series and calculate them. Which, I guess, is an algorithm in and of itself.
http://myweb.astate.edu/wpaulsen/tetration2.pdf
It's a fantastic paper. Paulsen has another paper exploring complex bases, but I think it lacks a good amount of the umph! of this paper, lol. It's not too hard to read, and in my mind, is a very cogent explanation of Kneser.
Also, I just have an irrational hatred of matrices. Not even that it's particularly hard, I can still use matrices if pressed--I just hate them. Lol I'm matrix phobic, lol.
Im still left with many many questions.
anyways,
I had the vague idea of mapping a boundary R to the real line iteratively.
that is to say by some kind of averaging.
by analogue when you want to map f(x) to the zero function you do something like
f(x)/2
f(x)/2 /2
f(x) /2 /2 /2
and
g1(f(x)) = f(x)/2
g2(g1(f(x))) = f(x)/4
etc
the sequence g_n are bounded functions that get weaker and weaker ( closer to id(z)) , so the sequence g_n(g_{n-1}(... ) is analytic.
maybe this is a garbage idea but it seems intuitive to me.
In fact , what do we know about fractional (iterations of) riemann mappings ?
In essense they are just fractional iterations of analytic functions but still ... I feel we might be missing something here.
regards
tommy1729

