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Universality of the gauge matrix in the mKdV hierarchy
Let $L$ be the Lax operator common to the entire hierarchy, and let $K$ be a gauge matrix defining a type-II Bäcklund transformation for one member of the hierarchy. Universality c…
Conjectureopenbacklund-transformations integrable-systems mkdv-hierarchyarXiv posted 2 days ago

Universality of the gauge matrix in the mKdV hierarchy