Remark 6.27 . [04L2]
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Remark 6.27.
Suppose we are given two normal forms of cylindrical type and . From the results in [1] (cf. also Theorem 4.13), a necessary condition for and to be symplectically conjugate is that , so suppose this holds. This gives a symplectomorphism, which we denote by , between the total spaces and of the two fibrations which conjugates and . By pulling back via this symplectomorphism and computing the Taylor series, we obtain a sequence of fibrewise closed sections of which we call . Using the same arguments as in the proof of Theorem 6.12 (cf.[2], Theorem 6.11), we can then show that and are symplectically conjugate if and only if . In particular, when , they are symplectically conjugate if and only if .