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Random Walk  Attracted by Percolation Clusters	   
  
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Serguei  Popov, Universidade de São Paulo, Brasil Marina  Vachkovskaia, Universidade de Campinas, Brasil 			 | 
		  
	   
		
  
		
			 
				
					   
					   Abstract 
	Starting with a percolation model in Zd
 in the subcritical regime,
we consider a random walk described as follows: the probability of
transition from x to y is proportional to some function f of
the size of the cluster of y. This function is supposed to be increasing,
so that the random walk is attracted by bigger clusters.
For f(t)=e
βt
we prove that there is a phase transition in β, i.e., the random walk
is subdiffusive for large β and is diffusive for small β.
				   
 
  
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Full text: PDF
  Pages: 263-272
  Published on: December 21, 2005
 
  
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                                           Bibliography 
        
- 
D. Aldous, J.A. Fill.
 
 Reversible Markov Chains and Random Walks
on Graphs. 
 Math. Review number not available.
 - 
M.T. Barlow.
Random walk on supercritical percolation clusters.
Ann. Probab. 32 (2004), 3024-3084.
Math. Review 2094438
 - 
M.T. Barlow, E.A. Perkins.
Symmetric Markov chains in Zd: how fast can they move?
Prob. Th. Rel. Fields 82 (1989), 95-108.
Math. Review 90j:60067
 - 
N. Berger, N. Gantert, Y. Peres.
The speed of biased random walk on percolation clusters.
Prob. Th. Rel. Fields 126 (2003), 221-242.
Math. Review 2004h:60149
 - 
D. Boivin, J. Depauw.
Spectral homogenization of reversible random walks 
on Zd in a random environment.
Stochastic Process. Appl. 104 (2003), 29-56.
Math. Review 2004e:60162
 - 
T.K. Carne.
A transmutation formula for Markov chains.
Bull. Sc. Math. (2) 109 (1985), 399-405.
Math. Review 87m:60142
 - 
L.R.G. Fontes, M. Isopi, C.M. Newman.
Random walks with strongly inhomogeneous rates and singular
      diffusions: convergence, localization and aging in one dimension.
Ann. Probab. 30 (2002), 579-604.
Math. Review 2003e:60229
 - 
L.R.G. Fontes, P. Mathieu. 
On symmetric random walks with random conductancies on Zd.
Preprint.
 - 
G.R. Grimmett.
 Percolation. 
Springer, Berlin (1999).
Math. Review 2001a:60114
 - 
G.R. Grimmett, H. Kesten, Y. Zhang.
Random walk on the infinite cluster of the percolation model.
Prob. Th. Rel. Fields 96 (1993), 33-44.
Math. Review 94i:60078
 - 
H. Kesten.
Subdiffusive behaviour of random walk on a random cluster.
Ann. Inst. H. Poincaré Probab. Statist. 22 (1986), 425-487.
Math. Review 88b:60232
 - 
M.V. Menshikov.
Coincidence of critical points in percolation problems.
Sov. Math. Doklady 33 (1986), 856-859.
Math. Review 88k:60175
 - 
S.V. Nagaev.
Large deviations of sums of independent random variables.
Ann. Probab. 7 (1979), 745-789.
Math. Review 80i:60032
 - 
L. Saloff-Coste.
 Lectures on Finite Markov Chains.
Lectures on probability theory and statistics (Saint-Flour,
1996), Lecture Notes in Math. 1665 (1997) 301-413, Springer, Berlin.
Math. Review 99b:60119
 - 
A.S. Sznitman.
On the anisotropic random walk on the supercritical percolation cluster.
Commun. Math. Phys. 240 (2003), 123-148.
Math. Review 2004f:60208
 - 
N.Th. Varopoulos.
Long range estimates for Markov chains.
Bull. Sc. Math. (2) 109 (1985), 225-252.
Math. Review 87j:60100
  
                                   
 
  
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