Abstract
Let F 1 and F 2 be independent copies of one-dimensional correlated fractal percolation, with almost sure Hausdorff dimensions dim H(F 1) and dim H(F 2). Consider the following question: does dim H(F 1)+dim H(F 2)>1 imply that their algebraic difference F 1−F 2 will contain an interval? The well known Palis conjecture states that ‘generically’ this should be true. Recent work by Kuijvenhoven and the first author (Dekking and Kuijvenhoven in J. Eur. Math. Soc., to appear) on random Cantor sets cannot answer this question as their condition on the joint survival distributions of the generating process is not satisfied by correlated fractal percolation. We develop a new condition which permits us to solve the problem, and we prove that the condition of Dekking and Kuijvenhoven (J. Eur. Math. Soc., to appear) implies our condition. Independently of this we give a solution to the critical case, yielding that a strong version of the Palis conjecture holds for fractal percolation and correlated fractal percolation: the algebraic difference contains an interval almost surely if and only if the sum of the Hausdorff dimensions of the random Cantor sets exceeds one.
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Open Access This is an open access article distributed under the terms of the Creative Commons Attribution Noncommercial License (https://creativecommons.org/licenses/by-nc/2.0), which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
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Dekking, M., Don, H. Correlated Fractal Percolation and the Palis Conjecture. J Stat Phys 139, 307–325 (2010). https://doi.org/10.1007/s10955-009-9907-x
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DOI: https://doi.org/10.1007/s10955-009-9907-x