Answers are grounded in this paper and cite their sources.
Several existence theorems are proved for absolutely continuous solutions and for continuously differentiable solutions of the equation dx(t) / dt ∈ F(t,x(t)), where $F(t,x)$ is a set continuously dependent on t, x.
No takes yet. Share an insight, caveat, or question.
Alexander Filippov (1967) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: