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Jordan tori and polynomial endomorphisms in $ℂ^2$

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Denker M., Heinemann S. M.

Fundamenta Mathematicae

1998

tom 157

nr 2-3

139-159

For a class of quadratic polynomial endomorphisms $f: ℂ^2 → ℂ^2$ close to the standard torus map $(x,y) → (x^2,y^2)$, we show that the Julia set J(f) is homeomorphic to the torus. We identify J(f) as the closure ℛ of the set of repelling periodic points and as the Shilov boundary of the set K(f) of points with bounded forward orbit. Moreover, it turns out that (J(f),f) is a mixing repeller and supports a measure of maximal entropy for f which is uniquely determined as the harmonic measure for K(f).

Ograniczanie wyników

1 Fundamenta Mathematicae

1 Denker M.

1 Heinemann S. M.

1 1998

Wyniki wyszukiwania

Jordan tori and polynomial endomorphisms in $ℂ^2$