“…Li et al used the Guo‐Krasnoselskii fixed point theorem to show the existence of positive solutions for fractional differential equation with integral boundary conditions on the infinite interval where 2 < α ≤ 3, f : J × J × J → J satisfies the Caratheodory conditions, are nonnegative, τ = 0, τ ∈ (0, + ∞ ), or τ = + ∞ , a , b are positive parameters.…”