1. Meron-antimeron solution in Minkowski space

   • Alfred Actor

   OriginalPaper Pages: 345 - 349

2. Bäcklund transformations and new solutions of nonlinear wave equations in four-dimensional space-time

   • R. L. Anderson
   • A. O. Barut
   • R. Rączka

   OriginalPaper Pages: 351 - 358

3. Generalization of the relativistic string model in the geometrical approach

   • B. M. Barbashov
   • V. V. Nesterenko
   • A. M. Chervjakov

   OriginalPaper Pages: 359 - 365

4. The origin of the algebra of quantum operators in the stochastic formulation of quantum mechanics

   • Mark Davidson

   OriginalPaper Pages: 367 - 376

5. A note on reflection positivity

   • James Glimm
   • Arthur Jaffe

   OriginalPaper Pages: 377 - 378

6. Embedding quantum logics in Hilbert space

   • Stanley P. Gudder
   • John R. Michel

   OriginalPaper Pages: 379 - 386

7. The lie algebra of invariant group of the KdV, MKdV, or Burgers equation

   • Tu Gue-Zhang

   OriginalPaper Pages: 387 - 393

8. Generalized symmetries of nonlinear partial differential equations

   • Yvette Kosmann-Schwarzbach

   OriginalPaper Pages: 395 - 404

9. On a class of local Lie algebras over a manifold

   • P. Lecomte

   OriginalPaper Pages: 405 - 411

10. The equipartition for quantum systems

    • R. Martens
    • A. Verbeure

    OriginalPaper Pages: 413 - 418

11. On the Noether map

    • L. Martinez Alonso

    OriginalPaper Pages: 419 - 424

12. Differential-difference evolution equations. II (Darboux transformation for the Toda lattice)

    • V. B. Matveev
    • M. A. Salle

    OriginalPaper Pages: 425 - 429

13. Erratum

    Erratum Pages: 429 - 429

14. Bäcklund transformations for the generalized sine-gordon equation in 2+1 and 3+1 dimensions

    • Ziemowit Popowicz

    OriginalPaper Pages: 431 - 436

15. On the Prasad-Sommerfield dyon (monopole) solution

    • P. Tataru-Mihai

    OriginalPaper Pages: 437 - 444

16. Conservation laws of free Klein Gordon fields

    • Toru Tsujishita

    OriginalPaper Pages: 445 - 450