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Paper   IPM / Physic / 6520
School of Physics
  Title:   Dynamics of Dimensions in Factor Space Cosmology
1.  U. Bleyer
2.  M. Mohazzab
3.  M. Rainer
  Status:   Published
  Journal: Astronomische Nachrichten
  No.:  82
  Vol.:  317
  Year:  1996
  Pages:   3-13
  Supported by:  IPM
For multidimensional cosmological models we investigate the dynamics of both, scales and dimensions. The classical equation of motions and the corresponding Wheeler-de Witt equation are set up generally, and the qualitative behaviour of the system is discussed for some specific model with 2 factor spaces: A space M1 with dynamical dimension, and a compact internal space M2 of constant dimension. With a natural choice of some contraint, there exist a solution where M1 expands as usual space while M2 is shrinking down to unobservable scales.

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