Reflectionless sine-Gordon potentials with an infinite spectrum A. B. BorisovS. A. Zykov OriginalPaper Pages: 264 - 271
On the spectrum of the Laplacian with frequently alternating boundary conditions D. I. BorisovR. R. Gadyl’shin OriginalPaper Pages: 272 - 277
Structural instability of a soliton for the Davey-Stewartson II equation R. R. Gadyl’shinO. M. Kiselev OriginalPaper Pages: 278 - 284
Exactly solvable models in supersymmetric quantum mechanics and connection with spectrum-generating algebras A. GangopadhyayaJ. V. MallowU. P. Sukhatme OriginalPaper Pages: 285 - 294
Resonance layers in the interactions of rapidly oscillating wave fields S. G. Glebov OriginalPaper Pages: 295 - 300
On the two-scale method for the problem of perturbed one-frequency oscillations A. M. Il’in OriginalPaper Pages: 301 - 306
Perturbation of a singular solution to the Liouville equation L. A. Kalyakin OriginalPaper Pages: 307 - 313
Fundamental mathematical structures of integrable models I. G. Korepanov OriginalPaper Pages: 319 - 324
Small-amplitude dispersion oscillations on the background of the nonlinear geometric optic approximation V. R. KudashevB. I. Suleimanov OriginalPaper Pages: 325 - 332
Construction of a new class of quantum integrable inhomogeneous models A. Kundu OriginalPaper Pages: 333 - 340
Perturbation of a two-soliton solution of the Korteweg-de vries equation in the case of close amplitudes V. A. Lazarev OriginalPaper Pages: 341 - 346
Geometry and multidimensional soliton equations R. MyrzakulovA. K. DanlybaevaG. N. Nugmanova OriginalPaper Pages: 347 - 356
Bethe equations “on the wrong side of the equator” G. P. Pron’koYu. G. Stroganov OriginalPaper Pages: 357 - 364
Path-integral formulation of backward and umklapp scattering for one-dimensional spinless fermions V. I. FernándezC. M. Naón OriginalPaper Pages: 385 - 391
