Integral Invariant of Birkhoff System

MEI Feng xiang. Integral Invariant of Birkhoff SystemJ. Transactions of Beijing institute of Technology, 2000, (1): 25-28.

Citation:

MEI Feng xiang. Integral Invariant of Birkhoff SystemJ. Transactions of Beijing institute of Technology, 2000, (1): 25-28.

Citation:

MEI Feng xiang. Integral Invariant of Birkhoff SystemJ. Transactions of Beijing institute of Technology, 2000, (1): 25-28.

Abstract

To give the integral invariants of Birkhoff system, including thePoincaré-Cartan integral invariant and the Poincarélinear integral invariant, the formula of the asynchronous variation of Pfaffianaction and the Birkhoff equations were used. The Poincaré-Cartanintegral invariant and the Poincaré linear integral invariant ofthe system were obtained.

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