Existence of conserved currents in the perturbative sine-Gordon and massive thirring models J. H. LowensteinE. R. Speer OriginalPaper Pages: 97 - 112
On trace representation of linear functionals on unbounded operator algebras Konrad Schmüdgen OriginalPaper Pages: 113 - 130
Models of Gross-Neveu type are quantization of a classical mechanics with nonlinear phase space F. A. Berezin OriginalPaper Pages: 131 - 153
Conservation laws for classes of nonlinear evolution equations solvable by the spectral transform F. CalogeroA. Degasperis OriginalPaper Pages: 155 - 176