Porosities of Mandelbrot percolation

Berlinkov, Artemi; Järvenpää, Esa (2019-06-01)
 
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https://doi.org/10.1007/s10959-019-00895-z

Berlinkov, Artemi
Järvenpää, Esa
Springer Nature
01.06.2019

Berlinkov, A. & Järvenpää, E. J Theor Probab (2019) 32: 608. https://doi.org/10.1007/s10959-019-00895-z

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© Springer Science+Business Media, LLC, part of Springer Nature 2019. This is a post-peer-review, pre-copyedit version of an article published in Journal of Theoretical Probability. The final authenticated version is available online at: https://doi.org/10.1007/s10959-019-00895-z.
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doi:https://doi.org/10.1007/s10959-019-00895-z
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Abstract

We study porosities in the Mandelbrot percolation process using a notion of porosity that is based on the construction geometry. We show that, almost surely at almost all points with respect to the natural measure, the construction-based mean porosities of the set and the natural measure exist and are equal to each other for all parameter values outside of a countable exceptional set. As a corollary, we obtain that, almost surely at almost all points, the regular lower porosities of the set and the natural measure are equal to zero, whereas the regular upper porosities reach their maximum values.

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