Hostname: page-component-77c89778f8-7drxs Total loading time: 0 Render date: 2024-07-17T04:06:26.675Z Has data issue: false hasContentIssue false

A characterization of postcritically minimal Newton maps of complex exponential functions

Published online by Cambridge University Press:  25 January 2018

KHUDOYOR MAMAYUSUPOV*
Affiliation:
Jacobs University Bremen, Campus Ring 1, 28759, Bremen, Germany email k.mamayusupov@jacobs-university.de National Research University Higher School of Economics, Faculty of Mathematics, Usacheva 6, Moscow, Russia

Abstract

We obtain a unique, canonical one-to-one correspondence between the space of marked postcritically finite Newton maps of polynomials and the space of postcritically minimal Newton maps of entire maps that take the form $p(z)\exp (q(z))$ for $p(z)$, $q(z)$ polynomials and $\exp (z)$, the complex exponential function. This bijection preserves the dynamics and embedding of Julia sets and is induced by a surgery tool developed by Haïssinsky.

Type
Original Article
Copyright
© Cambridge University Press, 2018 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Buff, X., Cui, G. and Tan, L.. Teichmüller spaces and holomorphic dynamics. Handbook of Teichmüller Theory. Vol. IV. Ed. Papadopoulos, A.. European Mathematical Society, Zurich, Switzerland, 2014, pp. 717756.Google Scholar
Branner, B. and Fagella, N.. Quasiconformal Surgery in Holomorphic Dynamics. Cambridge University Press, Cambridge, 2014.Google Scholar
Barański, K., Fagella, N., Jarque, X. and Karpińska, B.. On the connectivity of the Julia sets of meromorphic functions. Invent. Math. 198 (2014), 591636.Google Scholar
Barański, K., Fagella, N., Jarque, X. and Karpińska, B.. Accesses to infinity from Fatou components. Trans. Amer. Math. Soc. 369 (2017), 18351867.Google Scholar
Carleson, L. and Gamelin, T.. Complex Dynamics (Universitext: Tracts in Mathematics) . Springer, New York, 1993.Google Scholar
Cui, G. and Tan, L.. Hyperbolic-parabolic deformations of rational maps. Preprint, 2015, arXiv:1501.01385v3.Google Scholar
Cui, G. and Tan, L.. A characterization of hyperbolic rational maps. Invent. Math. 183(3) (2011), 451516.Google Scholar
Cui, G.. Dynamics of rational maps: topology, deformation and bifurcation. Preprint, 2009.Google Scholar
Douady, A. and Hubbard, J. H.. Étude dynamique des polynômes complexes. Publication Mathematiques d’Orsay, 84-02 and 85-04.Google Scholar
Douady, A. and Hubbard, J. H.. Proof of Thurston’s topological characterization of rational functions. Acta math. 171 (1993), 263297.Google Scholar
Haïssinsky, P.. Chirurgie parabolique. C. R. Math. Acad. Sci. Paris 327 (1998), 195198.Google Scholar
Haruta, M.. Newton’s method on the complex exponential function. Trans. Amer. Math. Soc. 351(6) (1999), 24992513.Google Scholar
Lodge, R., Mikulich, Y. and Schleicher, D.. A classification of postcritically finite Newton maps. Preprint, 2015, arXiv:1510.02771.Google Scholar
Mamayusupov, K.. Newton maps of complex exponential functions and parabolic surgery. Fund. Math., 2017, in press, doi:10.4064/fm345-9-2017.Google Scholar
Mamayusupov, K.. On postcritically minimal Newton maps. PhD Thesis, 2015, Jacobs University Bremen, Department of Mathematics and Logistics. Available at https://opus.jacobs-university.de/frontdoor/index/index/docId/209.Google Scholar
Manning, A.. How to be sure of finding a root of a complex polynomial using Newton’s method. Bol. Soc. Bras. Mat. 22 (1992), 157177.Google Scholar
Milnor, J.. Dynamics in One Complex Variable (Annals of Mathematics Studies, 160) , 3rd edn. Princeton University Press, Princeton, NJ, 2006.Google Scholar
Mayer, S. and Schleicher, D.. Immediate and virtual basins of Newton’s method for entire functions. Ann. Inst. Fourier (Grenoble) 56(2) (2006), 325336.Google Scholar
Przytycki, F.. Remarks on the simple connectedness of basins of sinks for iterations of rational maps. Dynamical Systems and Ergodic Theory (Banach Center Publications, 23) . Ed. Krzyźewski, K.. Polish Science Publishers, Warsaw, 1989, pp. 229235.Google Scholar
Rückert, J. and Schleicher, D.. On Newton’s method for entire functions. J. Lond. Math. Soc. 75(3) (2007), 659676.Google Scholar
Shishikura, M.. The connectivity of the Julia set of rational maps and fixed points. Complex Dynamics, Families Friends. Ed. Schleicher, D.. A. K. Peters Ltd, Wellesley, MA, 2009, pp. 257276.Google Scholar
Schleicher, D. and Stoll, R.. Newton’s method in practice: finding all roots of polynomials of degree one million efficiently. Theoretical Computer Science, Special Issue on Symbolic–Numerical Algorithms. Eds. Watt, S., Verschelde, J. and Zhi, L..Google Scholar
Tan, L. and Yongcheng, Y.. Local connectivity of the Julia set for geometrically finite rational maps. Sci. China Math. 39(1) (1996), 3947.Google Scholar