The Percolation Model
Percolation  is a very simple but powerful model of heterogeneous media. It is more than half a century old, and thousands of papers as well as several books have been written about it. Most of the recent progress has occurred in applications, particularly in geophysics and transport of fluids in porous media . The basic foundations are well established but some key results are still emerging with some surprises , notably in the number of percolating clusters and their description by simple renormalization group techniques.
KeywordsRenormalization Group Percolation Threshold Critical Behavior Triangular Lattice Universality Class
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