S. A. Kashchenko and D. O. Loginov, "Estimation of the Region of Global Stability of the Equilibrium State of the Logistic Equation with Delay," Russian Mathematics vol. 64, pp. 34–49 (2020)

https://doi.org/10.3103/S1066369X20090042

Abstract

We study the question of determining all those parameters for which all positive solutions to the logistic equation with delay tend to zero as 𝑡→∞t→∞. The well-known Wright conjecture [1] on the estimation of the set of such parameters is proved. A methodology is developed that makes it possible to sequentially refine this estimate.