Abstract
In this paper we study some mapping properties of analytic iterationsW(a, z). Our purpose is to establish a sufficient condition forW(a, z) to be conformal and univalent inz forz ∈D, whereD is a given domain and for sufficiently small |a |. To this end we consider the differential equationϱW(a, z)/ϱa=L[W(a, z)] with the conditionW(O, z)=z. A sufficient condition for the solutionW(a, z) of this system to be conformal and univalent inD for |a |<a 0 (for somea 0>0), and to satisfy the iteration equation, is established.
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References
L. Bieberbach,Theorie der Gewohnlichen Differentialgliechungen, Springer, Berlin, 1953, p. 1–5.
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E. Jabotinsky,On iterational invariants, Technion-Israel Inst. of Tech. Publ.6 (1954–1955), 68–80.
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This paper is based on a part of the author’s thesis towards the D.Sc. degree, under the guidance of Professor E. Jabotinsky at the Technion Israel Institute of Technology, Haifa.
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Lavie, M. Analytic iteration and differential equations. Israel J. Math. 5, 86–92 (1967). https://doi.org/10.1007/BF02771626
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DOI: https://doi.org/10.1007/BF02771626