Anomalous diffusion resulting from strongly asymmetric random walks

for leftward and rightward flights: PL(t);t 2m and PR(t);t 2h , with mfih. We calculate the dependence of the variance exponent g (s 2 ;t g ) on the PDF exponents n, m, and h. We find thatg is determined by the two smaller of the three PDF exponents, and in some cases by only the smallest. A PDF with decay exponent less