*Editorial* **Preface to the Special Issue on "Control, Optimization, and Mathematical Modeling of Complex Systems"**

**Mikhail Posypkin \*, Andrey Gorshenin \* and Vladimir Titarev \***

Federal Research Center "Computer Science and Control" of the Russian Academy of Sciences, 119333 Moscow, Russia

**\*** Correspondence: mposypkin@frccsc.ru (M.P.); agorshenin@frccsc.ru (A.G.); vladimir.titarev@frccsc.ru (V.T.)
