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We study the form invariance and Lie symmetry of a relativistic mechanical syste m. Firstly, we give the definition and criterion and conserved quantity of the f orm invariance and Lie symmetry in the system. Next, the relation between the fo rm invariance and Lie symmetry of the system is obtained. Finally, we give an ex ample to illustrate the application of the result.
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Keywords:
- relativity /
- mechanical system /
- form invariance /
- Lie symmetry
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