Noncommutative cosmological models coupled to a perfect fluid and a cosmological constant. (English) Zbl 1348.83093
Summary: We carry out a noncommutative analysis of several Friedmann-Robert-Walker models, coupled to different types of perfect fluids and in the presence of a cosmological constant. The classical field equations are modified, by the introduction of a shift operator, in order to introduce noncommutativity in these models. We show that the noncommutative versions of these models show several relevant differences with respect to the correspondent commutative ones.
MSC:
| 83F05 | Relativistic cosmology |
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