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cond-mat1993
Boundary-induced anisotropy of the avalanches in the sandpile automaton
Gongwen Peng, Hans Herrmann
We study numerically the avalanches in a two--dimensional critical height sandpile model with sand grains added at the center of the system. Smaller avalanches near the center of t…
cond-mat1993
Statistical Laws and Mechanics of Voronoi Random Lattices
K. B. Lauritsen, C. Moukarzel, H. J. Herrmann
We investigate random lattices where the connectivities are determined by the Voronoi construction, while the location of the points are the dynamic degrees of freedom. The Voronoi…