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  Gajardo, A. Add to Alert Profile  
 
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  Crossing information in two-dimensional sandpiles
Gajardo A., Goles E. Theoretical Computer Science 369(1): 463-469, 2006.  Type: Article

In 1999, Moore and Nilsson [1] demonstrated that, in lattice graphs of dimension d ≥ 3, the problem of predicting the state of a sandpile after n time steps is polynomial time (P) complete, ...
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Jun 6 2007  
  One head machines from a symbolic approach
Gajardo A., Mazoyer J. Theoretical Computer Science 370(1-3): 34-47, 2007.  Type: Article

This paper proposes a new computing machine model, a modified Turing machine, and studies properties of the proposed model. The major modification the authors propose is to allow for a tape in the form of a Cayley graph. In other words...
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Jun 1 2007  

   
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