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Title of Journal: Nuov Cim B

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Abbravation: Il Nuovo Cimento B (1971-1996)

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Società Italiana di Fisica

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DOI

10.1007/bf02892868

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1826-9877

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Limitations and validity of the HartreeFock metho

Authors: L Pietronero F Zirilli
Publish Date: 2007/10/16
Volume: 24, Issue: 1, Pages: 57-62
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Abstract

The problem of existence and uniqueness of solutions of the HartreeFock equations is studied by means of the LyusternikSchrinlmann category theory In the case of a box with all the states with negative energies the existence and uniqueness of the solutions is discussedИсследуется проблема существования и единственности решений уравнений ХартриФока с помощью теории категорий ЛюстерникаШринлманна В некоторых случаях обсуждается существование и единственность решений предполагая что в ящике существуют все состояния с отрицательными энергиямиSi studia il problema di esistenza ed unicità delle soluzioni delle equazioni di HartreeFock facendo uso della teoria della categoria di LyusternikSchrinlmann Nel caso che le funzioni siano definite in una scatola comunque grande ma finita con tutti gli stati aventi energia negativa si discute l’esistenza ed unicità delle soluzioni

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  2. N = 1,2 supergravities in 2 + 1 dimensions as Chern-Simons theories
  3. Maximal acceleration and the time-energy uncertainty relation
  4. Superselection rules; old and new
  5. On the relation between energy and momentum for electrons of a few MeV
  6. Measurements of low-frequency 1/ f α noise in semiconductor polycrystalline thin films of PbTe
  7. Nonrelativistic limit in the algebraic approach of relativistic quantum mechanics
  8. Machian solution with matter injection in cosmology
  9. A note on a quantum-mechanical harmonic oscillator in a space of constant curvature
  10. The gyrofrequency of a charged particle in a constant electromagnetic field. II.—The general result
  11. Magnetic bloch functions
  12. Electromagnetic potential vectors and spontaneous symmetry breaking
  13. Triplet correlations in model liquids
  14. Gravitational-wave tail in Einstein’s linear theory
  15. On the hypothesis that quantum mechanics has a nonlocal structure
  16. A deterministic representation of plane-wave interference
  17. The reconstruction theorem with external sources
  18. Nonabsorption resonances by nonlinear coherent effects in a three-level system
  19. Solution with third-order accuracy for the electron distribution function in weakly ionized gases and intrinsic semiconductors
  20. Probable observation of «excitonic» superconductivity in formvar-aluminum sandwiches
  21. Existence and stability criteria for circular geodesics in the vicinity of a Reissner-Nordström black hole
  22. High-resolution spectroscopy in the far ultraviolet
  23. A theoretical analysis on vibrational-energy transfers in gases
  24. A new calculation of atmospheric neutrino flux
  25. Four-dimensional symmetry from a broad viewpoint
  26. Four-dimensional symmetry from a broad viewpoint
  27. Inhomogeneous positron trapping in fatigued aluminum single crystals
  28. Rotationally symmetric clusters with zero net angular momentum
  29. On exact canonical momenta of collective motion in a many-boson system
  30. Instanton- and monopole-induced compactification of CP N space and chiral fermions in the Einstein-Yang-Mills theory
  31. Variational methods for bound-state problems
  32. Ray propagation in an inviscid fluid
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  35. Cauchy initial-value problem and application to Schwarzschild and Friedmann metrics
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  37. Ion-atom cross-sections for sputtering of inert-gas ion incident at low energy on polycrystalline copper target
  38. Conformal conservation laws for second-order scalar fields
  39. Exact solutions of nonlinear differential equations using continued fractions
  40. The classification of spherically symmetric space-times
  41. Radiating collapse of a heat-conducting-fluid sphere with conformally flat interior
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  43. Local Poincaré generators in the R + T 2 + R 2 theory of Gravity
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  45. Transformation de Fourier sur le groupe conforme
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