Mittag-Leffler distribution
The Mittag-Leffler distributions are two families of probability distributions on the half-line [ 0 , ∞ ) {\displaystyle [0,\infty )} . They are parametrized by a real α ∈ ( 0 , 1 ] {\displaystyle \alpha \in (0,1]} or α ∈ [ 0 , 1 ] {\displaystyle \alpha \in [0,1]} .
Source: Wikipedia — Mittag-Leffler distribution (CC BY-SA 4.0)