Summary
The 7th-order Sawada-Kotera equation has been found to have an infinite number of conserved quantities following a rather unusual series with 2nd, 5th, 8th etc. missing.
Riassunto
Si è trovato che l'equazione del settimo ordine di Sawada-Kotera ha un numero infinito di quantità conservate secondo una serie abbastanza insolita con seconda, quinta, ottava ecc. perdita.
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Krishnan, E.V. On Sawada-Kotera equations. Nuov Cim B 92, 23–26 (1986). https://doi.org/10.1007/BF02729693
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DOI: https://doi.org/10.1007/BF02729693