EN
In this paper, we study the existence of integrable solutions for the set-valued differential equation of fractional type
$(D^{αₙ} - ∑_{i=1}^{n-1} a_i D^{α_i})x(t) ∈ F(t,x(φ(t)))$,
a.e. on (0,1), $I^{1 - αₙ} x(0) = c$, αₙ ∈ (0,1),
where F(t,·) is lower semicontinuous from ℝ into ℝ and F(·,·) is measurable. The corresponding single-valued problem will be considered first.