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Title of Journal: Nuov Cim A

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Abbravation: Il Nuovo Cimento A (1965-1970)

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Società Italiana di Fisica

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10.1007/bf01291410

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1826-9869

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A gravitational Lagrangian and some identities in

Authors: L A Herrera
Publish Date: 2008/01/07
Volume: 17, Issue: 1, Pages: 48-54
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Abstract

A Lagrangian density is built from which the equations of the gravitational field are deduced in the NewmanPenrose formalism The use of the Noether theorem enables one to deduce some of the identities which have been used beforehand in the classification of the NewmanPenrose equations In the second part of the work we describe a similar treatment for the electromagnetic fieldСтроится плотность Лагранжиана для которой уравнения гравитационного поля выводятся в формализме НьюманаПенроуза Использование теоремы Ноэтера позволяет вывести некоторые тождества которые были использованы ранее в классификации уравнений НьюманаПенроуза Во второй части работы мы описываем аналогичный рецепт для электромагнитного поляSi costruisce una densità lagrangiana da cui si deducono le equazioni del campo gravitazionale nel formalismo di NewmanPenrose L’uso del teorema di Noether permette di dedurre alcune delle identità che sono state usate in precedenza nella classificazione delle equazioni di NewmanPenrose Nella seconda parte dell’articolo si descrive un trattamento analogo per il campo elettromagnetico

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  2. Projector in constrained quantum dynamics
  3. Pion inclusive distribution at cosmic-ray energies and comparison with ISR data
  4. Analysis of the reaction π + p → ρ 0 Δ ++ at 11.7 GeV/c incident momentum
  5. Primakoff effect and π 0 lifetime
  6. Computation of forward pp dispersion relations
  7. A new approach to heavy-ion fusion
  8. A measurement of the magnetic moment of the Σ + -hyperon
  9. Elastic and inelastic scattering of 0.8 GeV polarized protons from 18 O
  10. Surface waves in pion-proton elastic scattering
  11. A study of two-pion exchange contributions to quasi-elastic scattering at high energies
  12. Discrimination between the standard theory of electroweak interactions and its extensions
  13. Coloured supersymmetry
  14. Three generations and a large top-quark mass
  15. Doppler shift attenuation measurements on 57 Fe and 57 Co
  16. Charge radii of nucleons
  17. Regge poles with kinematic cuts in pion photoproduction
  18. Existence of solutions of partial-wave dispersion relations and singular N/D equations
  19. SU 9 «composite» symmetry and weak interactions
  20. Small-angle scattering and absorption of 3.0 GeV/c antiprotons in nuclear emulsion
  21. The spectrum of b $$\bar c$$ , t $$\bar c$$ and t $$\bar b$$ ; bound states in the two-step potential model
  22. The sequential light-particle emission in peripheral heavy-ion collisions. A theoretical approach
  23. Energy gain of spherical shell targets ablatively imploded by thermal radiation
  24. Finite-energy sum rules on hyperbolas. — II
  25. K X-ray spectrum of Na excited by photons
  26. Singular-value decomposition of the nucleon-nucleon reactance matrix
  27. Inelastic π - 3 He interaction at 180 MeV 3 He interaction at 180 MeV
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  32. Two-variable crossing-symmetric expansion of the ππ scattering amplitude and low-energy parameter sum rules
  33. Reduction of complex electromagnetic fields to the irreducible representations of the inhomogeneous Lorentz group
  34. Investigation of the 149 Sm (n, α) 146 Nd reaction induced by fast neutrons
  35. Conformal covariance of Dirac-Maxwell and ’t Hooft-Polyakov monopole theories
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  39. The pion decay constant as a scale for hadron dynamics
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  46. Baryon properties in chiral models
  47. Nuclear models and the hypernuclear interaction
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  49. A study of the low-mass part of the (Kππ) system in the reaction K − p→K − pπ + π − at 8.25 GeV/c
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  53. Non-regge and hyper-regge effects in pion-nucleon charge exchange scattering at high energies
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  56. The proton leading-particle spectrum at accelerator energies
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  59. A new approach to conformal invariant field theories
  60. Effective trajectories in the presence of Regge cuts
  61. π—-p interactions at 650 MeV
  62. Composite gauge fields from nonlinear realizations
  63. Approximate saturation of the algebra of axial currents
  64. A general treatment of current algebra
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  66. The deck model for nucleon diffraction dissociation at very high energies
  67. Deformation and interaction energies in statistical multifragmentation
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  74. O 4 invariance of a Bethe-Salpeter equation
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  76. Dual model with second-sheet resonances for pion-nucleon scattering
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  78. Nonstatistical structures in 12 C( 14 N, 4 He) 22 Na reaction
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  80. Fully-symmetric dual models and Lorentz invariance
  81. A temporarily free SU 6 gauge field theory model for strong interactions
  82. Inclusive and exclusive cross-sections in K − p interactions at 14.3 GeV/c
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  87. Fundamental coupling for weak interactions and masses
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  100. Electron form factors up to fourth order. - I
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