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arXiv 2101.01798math.DS
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关于吸引子具有非分形顶的自仿射IFS族

On a family of Self-Affine IFS whose attractors have a non-fractal top

Kevin G. Hare, Nikita Sidorov

摘要:

设$0< λ< μ<1$和$λ+μ>1$。本文证明了对于绝大多数这样的参数,IFS $\{(λx,μy), (μx+1-μ, λy+1-λ)\}$的吸引子$A_{λ,μ}$的顶点是一个连续的、严格递增函数的图.尽管如此,对于大多数参数,$A_{λ, μ}$具有严格大于1的盒维数,这表明上边界并不代表分形的复杂性。最后证明了如果$λμ\ge 2^{-1/6}$,则$A_{λ,μ}$有非空内部.

英文摘要:

Let $0< λ< μ<1$ and $λ+μ>1$. In this note we prove that for the vast majority of such parameters the top of the attractor $A_{λ,μ}$ of the IFS $\{(λx,μy), (μx+1-μ, λy+1-λ)\}$ is the graph of a continuous, strictly increasing function. Despite this, for most parameters, $A_{λ, μ}$ has a box dimension strictly greater than 1, showing that the upper boundary is not representative of the complexity of the fractal. Finally, we prove that if $λμ\ge 2^{-1/6}$, then $A_{λ,μ}$ has a non-empty interior.

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