“…Two applications for a system modeling cell dynamics related to leukemia have been included the work of Haplea et al (2021) (see also Parajdi et al, 2023) and three others in that of Precup (2022), of which two are self-control problems. Many other illustrations of the above principle can be derived from the rich literature in control theory (see, e.g., Coron, 2007).…”