Is there an analogue of Routh-Hurwitz criterion for systems with time-delay?
In other words, given the open-loop transfer function
$$G(s) = e^{-sT} \frac{P(s)}{Q(s)}$$
where $P$ and $Q$ are polynomials, it is possible to decide if the closed-loop transfer function $G/(1+G)$ is stable or not in terms of $T$ and the coefficients of $Q$?