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Liénard systems with several limit cycles

Published online by Cambridge University Press:  24 October 2008

N. G. Lloyd
Affiliation:
Department of Mathematics, The University College of Wales, Aberystwyth, Dyfed

Extract

There is an extensive literature on Liénard's equation

and numerous criteria for the existence of limit cycles have been developed: see the survey of Staude[7], for example. Broadly speaking, such results are proved in one of two ways: a bounded solution is shown to exist and the Poincaré–Bendixson theorem used, or an ‘a priori’ bound for periodic solutions is obtained and the methods of degree theory utilized.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1987

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References

REFERENCES

[1]Blows, T. R. and Lloyd, N. G.. The number of small-amplitude limit cycles of Liénard equations. Math. Proc. Cambridge Philos. Soc. 95 (1984), 359366.CrossRefGoogle Scholar
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[8]Zeng, Xianwu. Remarks on the uniqueness of limit cycles. Kexue Tongbao 28 (1983), 452455.Google Scholar