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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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1826-9877

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Classical geometrodynamics revisited

Authors: R Catenacci F Salmistraro
Publish Date: 2007/11/25
Volume: 46, Issue: 1, Pages: 167-178
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Abstract

Classical geometrodynamics the «already unified» theory of electromagnetism and gravitation is rewritten in the complex bivector formalism The null as well as the nonnull case are treated It is found that in both cases a oneform constructed with the spin coefficients naturally arises and masters the theory The vanishing of its exterior derivative must be included in the necessary and sufficient conditions for a metric to be a solution of the sourcefree EinsteinMaxwell equationsSi riformula nel formalismo dei bivettori complessi la cosiddetta «Geometrodinamica classica» cioè la teoria «già unificata» dellelettromagnetismo e della gravitazione Si tratta sia il caso nullo che il caso non nullo per il campo elettromagnetico In entrambi i casi si dimostra che una unoforma indotta naturalmente dalla geometria governa la teoria Infatti lannullamento della sua derivata esterna deve essere incluso nelle condizioni necessarie e sufficienti affinchè una metrica sia soluzione delle equazioni di EinsteinMaxwell senza sorgenti

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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
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  35. Cauchy initial-value problem and application to Schwarzschild and Friedmann metrics
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  42. Pais-uhlenbeck regularization of free quantum gravity: toward a unitary theory
  43. Local Poincaré generators in the R + T 2 + R 2 theory of Gravity
  44. Beyond the single universe
  45. Transformation de Fourier sur le groupe conforme
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