Symmetries of second order ODEs
classification
🧮 math.DG
math.CAmath.CV
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odesordersecondsymmetryalgebrasanalyticdemonstrateddimension
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It is demonstrated that point symmetry algebras of general analytic second order ODEs, not necessary of principal type, can have all dimensions between 0 and 8 except for 7. For the symmetry dimension 8 the ODE must be locally trivializable.
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