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Illustrations of the extensivity of Sq for the q ≠ 1 ASF model (with ε = 0.5): (a) d = 1; (b) d = 2; and (c) d = 3. Notice that the minimal value of N equals d - 1. limN → ∞ Sq(N)/N vanishes (diverges) if q > 1 - 1/d (q < 1 - 1/d), whereas it is finite for q = 1 - 1/d.
