On the Noether character of higher local conserved quantities for some two-dimensional models R. P. Zaikov OriginalPaper Pages: 363 - 371
Separation of variables and quantum numbers for Weyl neutrino fields on curved space-time N. KamranR. G. McLenaghan OriginalPaper Pages: 381 - 386
A wave operator for a non-linear Klein-Gordon equation Jacques C. H. Simon OriginalPaper Pages: 387 - 398
A duality between massless particles and a charge-monopole system A. O. BarutA. J. Bracken OriginalPaper Pages: 407 - 414