English

Complex Iterations of Entire Functions

Complex Variables 2016-04-07 v4 Dynamical Systems

Abstract

In a previous paper we produced a complex iteration of a holomorphic function ϕ\phi in the immediate basin of a fixed point whose multiplier is a real number and in between zero and one. We further explore this problem, allowing the multiplier to be a complex number and its modulus to be in between zero and one. We find expansions of results derived before. We will continue to use Ramanujan's master theorem and the process of \emph{factoring} appropriately bounded exponential functions by their values on the natural numbers. We will obtain \emph{all} complex iterations of entire ϕ\phi in the immediate basin of a fixed point whose multiplier is inside the punctured unit disk. The evaluation of any branch of the complex iteration ϕz(ξ)\phi^{\circ z}(\xi) for ξ\xi in a the immediate basin of a geometrically attracting fixed point involves an expression using the natural iterates ϕn(ξ)\phi^{\circ n}(\xi), the fixed point ξ0\xi_0 and its multiplier. We will give applications on certain bases of tetration functions. Namely we will iterate the principal branch of αξ\alpha^\xi for 0<αe1/e0 < \alpha \le e^{1/e} to arrive at the multi-valued function (zα)(^z \alpha).

Keywords

Cite

@article{arxiv.1512.00754,
  title  = {Complex Iterations of Entire Functions},
  author = {James D. Nixon},
  journal= {arXiv preprint arXiv:1512.00754},
  year   = {2016}
}

Comments

A crucial error was found in the domain of functions in which the result applies, it is being altered to accomodate this new error

R2 v1 2026-06-22T11:59:44.981Z