Abstract.
It is known that, for site percolation on the Cayley graph of a co-compact Fuchsian group of genus \( \ge 2 \), infinitely many infinite connected clusters exist almost surely for certain values of the parameter p = P{site is open}. In such cases, the set \( \Lambda \) of limit points at \( \infty \) of an infinite cluster is a perfect, nowhere dense set of Lebesgue measure 0. In this paper, a variational formula for the Hausdorff dimension \( \delta_H(\Lambda) \) is proved, and used to deduce that \( \delta_H(\Lambda) \) is a continuous, strictly increasing function of p that converges to 0 and 1 at the lower and upper boundaries, respectively, of the coexistence phase.
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Submitted: July 2000.
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Lalley, S. Percolation clusters in hyperbolic tessellations. GAFA, Geom. funct. anal. 11, 971–1030 (2001). https://doi.org/10.1007/s00039-001-8223-7
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DOI: https://doi.org/10.1007/s00039-001-8223-7