Lambda and mu-symmetries
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🧮 math-ph
math.MP
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lambda-symmetriesmurielcharacterizationdiscussedgeneralizationgeometricalhereintroduced
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Lambda-symmetries of ODEs were introduced by Muriel and Romero, and discussed by C. Muriel in her talk at SPT2001. Here we provide a geometrical characterization of lambda-prolongations, and a generalization of these -- and of lambda-symmetries -- to PDEs and systems thereof.
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