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Direct linearization, Cauchy matrix and Sato Grassmannian

Takasaki, Kanehisa
arXiv (All) · Papers
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14m1537k10exactly-solvable-and-integrable-systemsmathematical-physics
Fu and Nijhoff's direct linearization scheme for the KP hierarchy and its reductions employs a system of evolution equations of an infinite matrix $U$ with quadratic nonlinearity. Part of the matrix elements of $U$ can be identified with affine coordinates $w_{ij}$ of the top cell of the Sato Grassm
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