Abstract
If X is a bihamiltonian vector field tangent to a foliation which is Lagrangian with respect to both symplectic structures, the dynamical system x=X(x) implies a ‘local Lax equation’ Ŀ=[L, B], but in canonical adapted coordinates, this equation reduces to the trivial equation Ŀ=0.
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Kosmann-Schwarzbach, Y. Lagrangian foliations and Lax equations. Lett Math Phys 9, 163–167 (1985). https://doi.org/10.1007/BF00400715
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DOI: https://doi.org/10.1007/BF00400715