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A family of diffusion processes on Sierpinski carpets
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  • Published: February 2001

A family of diffusion processes on Sierpinski carpets

  • Hirofumi Osada1 

Probability Theory and Related Fields volume 119, pages 275–310 (2001)Cite this article

Abstract.

We construct a family of diffusions P α = {P x} on the d-dimensional Sierpinski carpet F^. The parameter α ranges over d H < α < ∞, where d H = log(3d− 1)/log 3 is the Hausdorff dimension of the d-dimensional Sierpinski carpet F^. These diffusions P α are reversible with invariant measures μ = μ[α]. Here, μ are Radon measures whose topological supports are equal to F^ and satisfy self-similarity in the sense that μ(3A) = 3α·μ(A) for all A∈ℬ(F^). In addition, the diffusion is self-similar and invariant under local weak translations (cell translations) of the Sierpinski carpet. The transition density p = p(t, x, y) is locally uniformly positive and satisfies a global Gaussian upper bound. In spite of these well-behaved properties, the diffusions are different from Barlow-Bass' Brownian motions on the Sierpinski carpet.

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Authors and Affiliations

  1. Graduate School of Mathematics, Nagoya University, Chikusa-ku, Nagoya, 464-8602, Japan. e-mail: osada@math.nagoya-u.ac.jp, , , , , , JP

    Hirofumi Osada

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  1. Hirofumi Osada
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Received: 30 September 1999 / Revised version: 15 June 2000 / Published online: 24 January 2000

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Osada, H. A family of diffusion processes on Sierpinski carpets. Probab Theory Relat Fields 119, 275–310 (2001). https://doi.org/10.1007/PL00008761

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  • Issue Date: February 2001

  • DOI: https://doi.org/10.1007/PL00008761

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  • Mathematics Subject Classification (2000): 60J60, 60J45
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