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Русская версия

**Yuri Vasilievich Churin**

Dept. of differential equation

Faculty of Mathematics and Mechanics

Saint-Petersburg State University

**Maxim Yurievich Osipov**

Dept. of differential equation

Faculty of Mathematics and Mechanics

Saint-Petersburg State University

A differential equation in complex plane with a complex polynomial as right-hand side is considered. The polynomial coefficients depends on time periodically. In assuming that the period of solution does not equal the period of the right-hand side, the example of disappearance of periodic solution with a disconnected limit set has been constructed.