A Bi-Hamiltonian Approach to the Sine-Gordon and Liouville Hierarchies Paolo Lorenzoni OriginalPaper Pages: 83 - 94
An Alternative Form of the Helmholtz Criterion in the Inverse Problem of Calculus of Variations Theodore Voronov OriginalPaper Pages: 103 - 110
Schrödinger Operators with Random Sparse Potentials. Existence of Wave Operators Denis Krutikov OriginalPaper Pages: 133 - 139
Landau—Lifshitz Hierarchy and Infinite-Dimensional Grassmann Variety Kanehisa Takasaki OriginalPaper Pages: 141 - 152
Elliptic Linear Problem for the Calogero—Inozemtsev Model and Painlevé VI Equation A. Zotov OriginalPaper Pages: 153 - 165