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Cosmology and Gravitation - Spin, Torsion, Rotation, and Supergravity (Paperback, Softcover reprint of the original 1st ed. 1980)
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Cosmology and Gravitation - Spin, Torsion, Rotation, and Supergravity (Paperback, Softcover reprint of the original 1st ed. 1980)
Series: NATO Science Series B:, 58
Expected to ship within 10 - 15 working days
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For the Sixth Course of the International School of Cosmology and
Gravitation of the "Ettore Maj orana" Centre for Scientific Cul-
ture we choose as the principal topics torsion and supergravity,
because in our opinion it is one of the principal tasks of today's
theoretical physics to attempt to link together the theory of ele-
mentary particles and general relativity. Our aim was to delineate
the present status of the principal efforts directed toward this
end, and to explore possible directions of work in the near future.
Efforts to incorporate spin as a dynamic variable into the
foundations of the theory of gravitation were poineered by E.
Cartan, whose contributions to this problem go back half a century.
Accord- ing to A. Trautman this so-called Einstein-Cartan theory is
the sim- plest and most natural modification of Einstein's 1916
theory. F. Hehl has contributed a very detailed and comprehensive
analysis of this topic, original view of non-Riemannian space-time.
Characteristic of Einstein-Cartan theories is the enrichment of
Riemannian geometry by torsion, the non-symmetric part of the
otherwise metric-compatible affine connection. Torsion has a impact
on the theory of elementary particles. According to V. de Sabbata,
weak interactions can be based on the Einstein-Cartan geometry, in
that the Lagrangian describing weak interactions and torsion
inter-- action possess analogous structures, leading to a
unification of weak and gravitational forces.
General
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