Spin waves, vortices, and the structure of equilibrium states in the classicalXY model Jürg FröhlichCharles-Edouard Pfister OriginalPaper Pages: 303 - 327
On perturbation theory for regularized determinants of differential operators R. E. Gamboa-SaravíM. A. MuschiettiJ. E. Solomin OriginalPaper Pages: 363 - 373
On the energy spectrum and parameter spaces of classicalCP n models R. CatenacciM. CornalbaC. Reina OriginalPaper Pages: 375 - 386
Symmetries of cosmological Cauchy horizons Vincent MoncriefJames Isenberg OriginalPaper Pages: 387 - 413
The rotation number for finite difference operators and its properties F. DelyonB. Souillard OriginalPaper Pages: 415 - 426
Nonlinear Schrödinger equations and simple Lie algebras Allan P. FordyPeter P. Kulish OriginalPaper Pages: 427 - 443