Conformal Invariance and Noether Conserved Quantities of First-Order Lagrange Systems

• 来源期刊: 理论物理通讯（英文版）
• 年，卷（期）: 2008,（11）
• 页码范围: 1065-1068
• 页数: 4页
• 语种: 英文

摘要

In this paper the conformal invariance by infinitesimal transformations of first-order Lagrange systems is discussed in detail. The necessary and sufficient conditions of conformal invariance by the action of infinitesimal transformations being Lie symmetry simultaneously are given. Then we get the conserved quantities of conformal invariance by the infinitesimal transformations. Finally an example is given to illustrate the application of the results.