Аннотация
Erosion of rocky coasts spontaneously creates irregular seashores. But the geometrical irregularity,
in turn, damps the sea waves, decreasing the average wave amplitude. There may then exist a mutual
self-stabilization of the wave amplitude together with the irregular morphology of the coast. A simple
model of such stabilization is studied. It leads, through a complex dynamics of the earth-sea interface,
to the appearance of a stationary fractal seacoast with a dimension close to 4=3. Fractal geometry here
plays the role of a morphological attractor directly related to percolation geometry.
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