GLOBAL QUANTAL CANONICAL SYMMETRY PROPERTIES FOR A SYSTEM WITH A SINGULAR LAGRANGIAN
奇异拉氏量系统的整体量子正则对称性质

Starting from the quantization formalism of the phase-space path integral for a system with a singular Lagrangian, the generalized canonical Ward identities and conserved charges at quantum level are deduced under the global transformation in extended phase space. In general, the quantal conserved charges are different from classical ones. We give a preliminary application to Yang-Mills theory,the new quantal conserved charges are found.