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Moscow Mathematical Journal, 2015, Volume 15, Number 1, Pages 73–87
DOI: https://doi.org/10.17323/1609-4514-2015-15-1-73-87
(Mi mmj549)
 

This article is cited in 4 scientific papers (total in 4 papers)

Algebraic independence of multipliers of periodic orbits in the space of rational maps of the Riemann sphere

Igors Gorbovickis

Department of Mathematics, University of Toronto, Room 6290, 40 St. George Street, Toronto, Ontario, Canada M5S 2E4
Full-text PDF Citations (4)
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Abstract: We consider the space of degree $n\ge2$ rational maps of the Riemann sphere with $k$ distinct marked periodic orbits of given periods. First, we show that this space is irreducible. For $k=2n-2$ and with some mild restrictions on the periods of the marked periodic orbits, we show that the multipliers of these periodic orbits, considered as algebraic functions on the above mentioned space, are algebraically independent over $\mathbb C$. Equivalently, this means that at its generic point, the moduli space of degree $n$ rational maps can be locally parameterized by the multipliers of any $2n-2$ distinct periodic orbits, satisfying the above mentioned conditions on their periods. This work extends previous similar result obtained by the author for the case of complex polynomial maps.
Key words and phrases: rational maps of the Riemann sphere, multipliers of periodic orbits.
Received: March 2, 2014; in revised form July 28, 2014
Bibliographic databases:
Document Type: Article
MSC: 37F10, 37F05
Language: English
Citation: Igors Gorbovickis, “Algebraic independence of multipliers of periodic orbits in the space of rational maps of the Riemann sphere”, Mosc. Math. J., 15:1 (2015), 73–87
Citation in format AMSBIB
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\by Igors~Gorbovickis
\paper Algebraic independence of multipliers of periodic orbits in the space of rational maps of the Riemann sphere
\jour Mosc. Math.~J.
\yr 2015
\vol 15
\issue 1
\pages 73--87
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\crossref{https://doi.org/10.17323/1609-4514-2015-15-1-73-87}
\mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=3427412}
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  • This publication is cited in the following 4 articles:
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