Martin boundary and exit space on the Sierpinski gasket |
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| Authors: | Ka-Sing Lau Sze-Man Ngai |
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| Institution: | 1. Department of Mathematics, The Chinese University of Hong Kong, Hong Kong, China
2. Department of Mathematical Sciences, Georgia Southern University, Statesboro, GA, 30460-8093, USA
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| Abstract: | We define a new Markov chain on the symbolic space representing the Sierpinski gasket (SG), and show that the corresponding Martin boundary is homeomorphic to the SG while the minimal Martin boundary is the three vertices of the SG. In addition, the harmonic structure induced by the Markov chain coincides with the canonical one on the SG. This suggests another approach to consider the existence of Laplacians on those self-similar sets for which the problem is still not settled. |
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| Keywords: | Martin boundary Markov chain Green function harmonic function fractal Sierpinski gasket |
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