 Third-order Boussinesq Lax pair

ID: third-order-boussinesq-lax-pair

L_{t} = [L, A]

for these operators is equivalent to

q_{t} = 3 p_{x}, p_{t} = q_{xxx} - 4 (q^{2})_{x} .

Eliminating

p

q_{tt} = 3 q_{xxxx} - 12 (q^{2})_{xx} .

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