Ss. Manna et D. Dhar, FRACTAL DIMENSION OF BACKBONE OF EDEN TREES, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 54(4), 1996, pp. 3063-3066
We relate the fractal dimension of the backbone, and the spectral dime
nsion of Eden trees to the dynamical exponent z. In two dimensions, it
gives fractal dimension of backbone equal to 4/3 and spectral dimensi
on of trees equal to 5/4. In three dimensions, it provides us with ano
ther way to estimate z numerically. We get z=1.617+/-0.004.