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Bifurcation analysis in a limit cycle oscillator with delayed feedback. (English) Zbl 1080.34054
The paper classifies the location and criticality of the Hopf bifurcations, depending on parameters, in the the limit cycle oscillator with delayed feedback $\dot z(t)-(a+i\omega-\vert z(t)\vert ^2)z(t)=-k_1z(t-\tau)-k_2z^2(t-\tau)$, where $z$ is complex.

34K18Bifurcation theory of functional differential equations
34K20Stability theory of functional-differential equations
Full Text: DOI
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