Аннотация
We investigate percolation on a randomly directed lattice, an
intermediate between standard percolation and directed percolation,
focusing on the isotropic case in which bonds on opposite directions
occur with the same probability. We derive exact results for the
percolation threshold on planar lattices, and we present a conjecture
for the value of the percolation-threshold in any lattice. We also
identify presumably universal critical exponents, including a fractal
dimension, associated with the strongly connected components both for
planar and cubic lattices. These critical exponents are different from
those associated either with standard percolation or with directed
percolation.
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