Universe Without Singularities A Group Approach to De Sitter Cosmology

Details Universe Without Singularities A Group Approach to De Sitter Cosmology Universe Without Singularities A Group Approach to De Sitter Cosmology

May 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006ejtp....3j.211l&link_type=abstract

Electronic Journal of Theoretical Physics, Vol.3, N 10, p. 211-224

Physics

Group Methods In Theoretical Physics, Projective Relativity, De Sitter Universe, Quantum Cosmology.

Scientific paper

In the last years the traditional scenario of ``Big Bang'' has been deeply modified by the study of the quantum features of the Universe evolution, proposing again the problem of using ``local'' physical laws on cosmic scale, with particular regard to the cosmological constant role. The ``group extention'' method shows that the De Sitter group univocally generalizes the Poincaré group, formally justifies the cosmological constant use and suggests a new interpretation for Hartle-Hawking boundary conditions in Quantum Cosmology.

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