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On Exact and Approximate Symmetries of Algebraic and Ordinary Differential Equations with a Small Parameter. (arXiv:2104.00049v1 [math-ph]) http://arxiv.org/abs/2104.00049
On Exact and Approximate Symmetries of Algebraic and Ordinary Differential Equations with a Small Parameter. (arXiv:2104.00049v1 [math-ph]) http://arxiv.org/abs/2104.00049