Abstract
The gauge symmetries of a constrained system can be deduced from the gauge identities with Lagrange method, or the first-class constraints with Hamilton approach. If Dirac conjecture is valid to a dynamic system, in which all the first-class constraints are the generators of the gauge transformations, the gauge transformations deduced from the gauge identities are consistent with these given by the first-class constraints. Once the equivalence vanishes to a constrained system, in which Dirac conjecture would be invalid. By using the equivalence, two counterexamples and one example to Dirac conjecture are discussed to obtain defined results.
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Wang, YL., Li, ZP. & Wang, K. Gauge Symmetries and Dirac Conjecture. Int J Theor Phys 48, 1894–1904 (2009). https://doi.org/10.1007/s10773-009-9961-9
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DOI: https://doi.org/10.1007/s10773-009-9961-9