Rg. Zhou, LAX REPRESENTATION, R-MATRIX METHOD, AND SEPARATION OF VARIABLES FOR THE NEUMANN-TYPE RESTRICTED FLOW, Journal of mathematical physics, 39(5), 1998, pp. 2848-2858
The r-matrix method and the method of separation of variables for rest
ricted flows with Neumann constraints are considered, Restricted Jaule
nt-Miodek flows are taken as illustrative examples. Lax representation
s are obtained from the adjoint representation of the corresponding so
liton hierarchy; the r-matrix formula, based on this Lax representatio
n, is derived; and the separation of variables for the Hamilton-Jacobi
equation are performed. (C) 1998 American Institute of Physics.