1. Rational parametrisation of normalised stiefel manifolds, and explicit non-'t hooft solutions of the Atiyah-Drinfeld-Hitchin-Manin instanton matrix equations for Sp(n)

   • Patrick J. McCarthy

   OriginalPaper Pages: 255 - 261

2. Excited states of fundamental particles in some models of quantum field theory

   • Ryszard Raczka

   OriginalPaper Pages: 263 - 275

3. Singular solitons: An example of a Sinh-Gordon equation

   • A. K. Pogrebkov

   OriginalPaper Pages: 277 - 285

4. Quasi-Lagrangian systems

   • L. Abellanas
   • A. Galindo

   OriginalPaper Pages: 287 - 291

5. Constants of motion for linear evolution systems

   • A. Galindo

   OriginalPaper Pages: 293 - 301

6. On euclidean systems of covariance for massless particles

   • D. P. L. Castrigiano

   OriginalPaper Pages: 303 - 309

7. Axially symmetric solutions of einstein equations

   • E. Kyriakopoulos

   OriginalPaper Pages: 311 - 317

8. Separable interactions in classical relativistic Hamiltonian mechanics

   • H. Sazdjian

   OriginalPaper Pages: 319 - 325

9. Properties of mixtures on non-orthogonal states

   • N. Hadjisavvas

   OriginalPaper Pages: 327 - 332

10. Renormalization of the 1/N expansion and critical behaviour of (2+1)-dimensional supersymmetric non-linear sigma-models

    • E. R. Nissimov
    • S. J. Pacheva

    OriginalPaper Pages: 333 - 340

11. On the discrete spectrum of the N-body quantum mechanical Hamiltonian: II

    • Rafael José Iório Jr.

    OriginalPaper Pages: 341 - 349

12. On the local Chevalley cohomology of the dynamical Lie algebra of a symplectic manifold

    • Marc De Wilde

    OriginalPaper Pages: 351 - 358