One-sided Lebesgue Bernoulli maps of the sphere of degree n2 and 2n2
We prove that there are families of rational maps of the sphere of degree n2(n=2,3,4,…) and 2n2(n=1,2,3,…) which, with respect to a finite invariant measure equivalent to the surface area measure, are isomorphic to one-sided Bernoulli shifts of maximal entropy. The maps in question were constructed...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2000-01-01
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| Series: | International Journal of Mathematics and Mathematical Sciences |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1155/S0161171200001484 |
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| Summary: | We prove that there are families of rational maps of the sphere of
degree n2(n=2,3,4,…) and 2n2(n=1,2,3,…) which,
with respect to a finite invariant measure equivalent to the
surface area measure, are isomorphic to one-sided Bernoulli shifts
of maximal entropy. The maps in question were constructed by
Böettcher (1903--1904) and independently by Lattès (1919).
They were the first examples of maps with Julia set equal to the
whole sphere. |
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| ISSN: | 0161-1712 1687-0425 |