A nonlinear superposition principle admitted by coupled Riccati equations of the projective type Robert L. Anderson OriginalPaper Pages: 1 - 7
Stability of spectral properties for sequences of abstract operators of the type of Sturm-Liouville G. Cicogna OriginalPaper Pages: 9 - 13
On the regularity of Ernst's generalized C-metric Tevian DrayMartin Walker OriginalPaper Pages: 15 - 18
A new regularization method for feynman diagrams G. A. KerimovYi. A. Verdiev OriginalPaper Pages: 29 - 31
Thermodynamic behaviour of a collective atomic system driven by a classical field S. V. LawandeD. C. Khandekar OriginalPaper Pages: 33 - 37
Disjointness of β-KMS states with different chemical potential U. Müller-Herold OriginalPaper Pages: 45 - 48
Geometrical meaning of the Poincaré group gauge theory Krzysztof A. Pilch OriginalPaper Pages: 49 - 51
Light-cone expansion of matrix elements of current commutators D. RobaschikG. TrögerE. Wieczorek OriginalPaper Pages: 53 - 60
Davidson's generalization of the Fényes-Nelson stochastic model of quantum mechanics David S. Shucker OriginalPaper Pages: 61 - 65
Bounds of the entropy in terms of one particle distributions W. Thirring OriginalPaper Pages: 67 - 70