Table Of Content

Letters in Mathematical Physics 48: 391—392, 1999. Contents of Volume 48 Volume 48 No.1 April (1) 1999 JACQUES C. H. SIMON and DANIEL STERNHEIMER / Editorial Moshé Flato — Personal Recollections MAXIM KONTSEVICH / Operads and Motives in Deformation Quantization MASSIMO PORRATI / General Relativity, Strings, and Mathematical Physics ALAIN CONNES and DIRK KREIMER / Lessons from Quantum Field Theory: Hopf Algebras and Spacetime Geometries ALAIN CONNES and HENRI MOSCOVICI / Cyclic Cohomology and Hopf Algebras MOSHE FLATO, CHRISTIAN FRO@NSDAL and DANIEL STERNHEIMER / Singletons, Physics in AdS Universe and Oscillations of Composite Neutrinos 109 Announcement: Conference Moshe Flato 12] Volume 48 No. 2 April (11) 1999 MARTIN BORDEMANN and MARTIN WALTER / Quantum Inte- grable Toda-Like Systems in Deformation Quantization D.V. SHIRKOV / Nonpower ‘Spectral’ Perturbation Expansion in QFT LAURA ANDRIANOPOLI and SERGIO FERRARA / Short and Long SU(2, 2/4) Multiplets in the AdS/CFT Correspondence H. GROSSE and A. STROHMAIER / Noncommutative Geometry and the Regularization Problem of 4D Quantum Field Theory GU CHAOHAO (C. H. GU) / The Group Property of Darboux Transformations from R* to U(N) HU HESHENG (H. S. HU) / Darboux Transformations Between Az =sinhz and Ax =sinz and the Application to Pseudo- Spherical Congruences in R*! VADIM KOSTRYKIN and ROBERT SCHRADER / Determination of the Scattering Amplitudes of Schrodinger Operators from the Cross-Sections, a New Approach 392 LETTERS IN MATHEMATICAL PHYSICS Volume 48 No. 3 May 1999 P. D. HISLOP and D. A. WHITE / The Scattering Matrix and its Meromorphic Continuation in the Stark Effect Case 209 YUNPING JIANG /A Proof of the Existence and Simplicity of a Maximal Eigenvalue for Ruelle—Perron—Frobenius Operators SERGIO ALBEVERIO, YURI KONDRATIEV and YURI KOZITSKY Classical Limits of Euclidean Gibbs States for Quantum Lattice Models B. LINET / Characteristic Hypersurfaces in a Relativistic Superfluid Theory R. PARTHASARATHY and K. S. VISWANATHAN / Induced Rigid String Action from Fermions P. MATHONET / Invariant Bidifferential Operators on Tensor Densities over a Contact Manifold V.TERRAS / Drinfel’d Twists and Functional Bethe Ansatz L. A. DICKEY / Modified KP and Discrete KP Volume 48 No. 4 June 1999 D. ARNAL, N. BEN AMAR and M. MASMOUDI / Cohomology of Good Graphs and Kontsevich Linear Star Products GIUSEPPE DITO / Kontsevich Star Product on the Dual of a Lie Algebra MICHEL DUBOIS-VIOLETTE and IVAN T. TODOROV / Generalized Homologies for the Zero Modes of the SU(2) WZNW Model A. SOFFER and M. I. WEINSTEIN / Ionization and Scattering for Short-Lived Potentials MICHEL CAHEN, SIMONE GUTT and JOHN RAWNSLEY Preferred Invariant Symplectic Connections on Compact Coadjoint Orbits KATSUHISA MIMACHI / Barnes-Type Integral and the Meixner Pollaczek Polynomials GUIDO COGNOLA and SERGIO ZERBINI / Consistent, Covariant and Multiplicative Anomalies DARIUSZ CHRUSCINSKI / SO(2) Symmetry of a Maxwell p-Form Theory