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On the period function of planar systems with unknown normalizers
M. Sabatini
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Source: Crossref
Published: Jul 21, 2005
DOI: 10.1090/s0002-9939-05-08032-9
Open original source ↗Source abstract
A necessary and sufficient condition for the period function’s monotonicity on a period annulus is given. The approach is based on the theory of normalizers, but is applicable without actually knowing a normalizer. Some applications to polynomial and Hamiltonian systems are presented.
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