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Birkhoff Normal Form and Twist Coefficients of Periodic Orbits of Billiards

WOLFRAM MATERIALS for the ARTICLE:

Xin Jin and Pengfei Zhang (2022),

Birkhoff normal form and twist coefficients of periodic orbits of billiards,

Nonlinearity 35 3907

https://doi.org/10.1088/1361-6544/ac7701

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POSTED BY: Pengfei Zhang
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