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Helvetica Physica Acta

Helvetica Physica Acta Volume 61 (1988)
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Issue 1-2 1
Article Zum Stande der Hochtemperatur-Supraleitung
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1
Article Adiabatic charge transport and topological invariants for quasi-periodic hamiltonians
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2
Article Der Supercomputer und die wissenschaftliche Erkenntnis
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9
Article ASTRID : a family of scientific applications programs
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24
Article On the growing impact of artificial intelligence
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30
Article Computer Vision und künstliche Intelligenz
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36
Article Common elements of the various disciplines in computational science
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42
Association News Rapport de la réunion d'automne de la Société Suisse de Physique (SSP), Lucerne, 8 et 9 octobre 1987
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59
Issue 3 257
Article Notes on asymptotic perturbation theory for Schrödinger eigenvalue problems
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257
Article Glueballs
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305
Article Vanishing β-functions in N = 1 supersymmetric gauge theories
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321
Article Quasiperiodic Krönig-Penney model on a Fibonacci superlattice
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345
Article The continuum limit of dissipative dynamics in H. Fröhlich's pumped phonon system
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363
Issue 4 379
Article A l'occasion du soixantième anniversaire de Martin Peter, le 12 juillet 1988
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379
Article One-dimensional band dispersion relations in terms of SU(2) representations
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381
Article k-space related properties in disordered solids
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394
Article Energy band structure of the high T_C superconductors
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401
Article New approach to electron-positron interaction in jellium
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415
Article Band structure and electron-phonon coupling in the La1-xSr_xCuO_4 superconductors
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421
Article Intuitive LCAO band model for RBa_2Cu_3O_7 structure
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426
Article High temperature thermoelectric power measurements of YBa_2Cu_3O_7-δ and conclusions concerning the electronic structure close to E_F
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433
Article Thermal conductivity of the high-T_C superconductors
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438
Article Critical currents in high T_C superconductors
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443
Article The lower critical field in high-T_C superconductors
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447
Article Positron annihilation and superconductivity
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451
Article Structural, thermal and magnetic properties of the YBa_2Cu_3O_6.9 superconductor prepared by citrate pyrolysis
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460
Article Crystal growth of the high T_C superconductor YBa_2Cu_3O_7-x
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470
Article H_c2-anisotropy effects in superconducting niobium polycrystals
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478
Article Using metallic multilayers to investigate basic physical problems
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488
Article Itinerant magnetism in K_2NiF_4-type compounds
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496
Article Analysis of the CESR ferromagnetic and paramagnetic itinerant electron compounds : ZrZn_2, Sc_3In vs TiBe_2
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505
Article Magnetic properties and resonance studies of some gadolinium-transition-metal-boron compounds
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512
Article Impurities in heavy fermion superconductors
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518
Article Resistivity and magnetoresistance of CeAl_3 single crystals
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530
Article Do metallic quasicrystals and associated Frank and Kasper phases follow the Hume Rothery rules?
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538
Article Compressibility and internal pressure anomalies of liquid 3d transition metals
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557
Article On the optical properties of small metallic spheres
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566
Article Importance de l'amplitude du champ magnétique constant dans le diagnostic médical par RMN
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572
Article Scanning tunneling microscopy at the University of Geneva
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579
Issue 5 589
Article Neutron interferometric tests of quantum mechanics
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589
Article Interference and coherent tunneling in dissipative quantum systems
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611
Article Macroscopic quantum mechanics experiments
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622
Article Schwinger model on S^2
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636
Article Diffraction et microscopie électroniques sur des petits grains métalliques: effets de taille. I, Défauts et structures anormales multimaclées dans l'or et le platine
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712
Article Diffraction et microscopie électroniques sur des petits grains métalliques: effets de taille. II, Facteur de Debye-Waller de l'or
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730
Issue 6 741
Article Introduction to the physics of high temperature superconductors
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741
Article Spin susceptibility and NMR spectra of small jellium spheres
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760
Article Frequency doubling of incoherent microwave radiation in a cold magnetized plasma
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778
Association News Rapport de la réunion de printemps de la Société Suisse de Physique des 28 et 29 mars 1988 à Windisch
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801
Issue 7 905
Article Classical local fields for hadrons in chromodynamics
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905
Article A variational proof of the existence of a bound state in a relativistic quantum model with weak coupling
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923
Article An alternative approach to the Green's function of a relativistic spinless charged particle in an external uniform electromagnetic field
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958
Article Complex groups, quantum mechanics, and the dimension and reality of space
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966
Article Thermodynamic quantities and the motion of energy levels
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979
Article The memory function formalism in the study of the dynamics of a many body system
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988
Article Low-field magnetic susceptibility measurements of high-T_C granular superconductors
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1007
Article The influence of coherent drift waves on the magnetoacoustic resonance in cylindrical plasmas
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1013
Issue 8 1027
Article Some applications of the 3 + 1 formalism of general relativity
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1027
Article The large deviation principle for the Kac distribution
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1063
Article Localization and cross-over in linear models of random arrays of barriers
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1079
Article Spin dynamics of transitions among muon states in semiconductors
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1087
Article On the s-wave repulsion of the pion-nuclear interaction
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1130
Table of Contents
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1137
Index Author's index = Autorenregister = Table des auteurs
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1145