sigma11-005. 327KB Jun 04 2011 12:10:47 AM
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transformation is not only a time discretization of a one parameter family of continuous flows equipped with the same integrals of motion ( 1.3 ), ( 2.7 ), but it has also the
[4] Branson T., Nonlinear phenomena in the spectral theory of geometric linear differential operators, in Quan- tization, Nonlinear Partial Differential Equations, and Operator
We also believe that the method presented here can be applied to solve the XXZ model with higher spin in the case of periodic boundary conditions. These cases have been treated
We establish an equivalence between a scaling limit of the partition function of the six-vertex model on a cylinder with quasi-local operators inserted and special boundary
Recently, however, the use of finite groups in particle physics has been rekindled, due to new developments; for example, the Monster group M, which is the largest sporadic group,
For cases where numerical analysis is required, it is also relatively straightforward to construct graphs of the phase-space curves using the series solutions, augmented by
Another possible method for constructing extra commuting operators is the multidimensional Darboux transformation, because the commuting operator for the case of Heun’s equation is
In the case of isospectral Lax equations, such as the Mumford system, this procedure should lead to a Hamiltonian form of equations of motion for the spectral Darboux