利用现代微分几何方法研究了Lagrange系统、Hamihon系统和Birkhoff系统的Noether对称性,并导出系统相应的Noether守恒量,最后给出了应用算例.
In this article Noether symmetry of Lagrange systems, Hamilton systems and Birkhoff systems are discussed by geometric methods. And the corresponding Noether conserved quantities are deduced.