Abstract (may include machine translation)
In theories of classical diffusion near to the percolation threshold two characteristic times can be defined: tau s for the short time and tau h for the hydrodynamic behaviour. Physically tau stauh should be fulfilled and the authors suggest this relation as a criterion of validity in such theories. For the effective medium and the self-consistent current relaxation theory the region where this criterion is violated shrinks with dimension d to infinity , but remains finite for all d>2, d=2 is a marginal case concerning the criterion.
Original language | English |
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Pages (from-to) | L501-L505 |
Journal | Journal of Physics A: General Physics |
Volume | 17 |
Issue number | 9 |
DOIs | |
State | Published - 21 Jun 1984 |
Externally published | Yes |