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On the location of some quasipolynomial roots. (Russian. English summary) Zbl 1207.34102

Summary: The location of quasipolynomial roots in a complex plane that appear while we inverstigate differential equations of the locator and the combustion process in the rocket engine is analysed. The same research is carried out for a differential equation with delay of neutral type appearing in mathematical ecology.

MSC:

34K40 Neutral functional-differential equations
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