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Reconstructing dark energy. (English) Zbl 1118.83001

The authors attempt to briefly summarize some important approaches towards cosmological reconstruction. These approaches are briefly classificable into parametric and non-parametric methods. Both methods appear to give consistent results when applied to current data. Future directions for model independent reconstruction of dark energy have also been briefly discussed. In the first approximation, within current observational errors, the reconstructed dark energy behaves like a cosmological constant. The authors note that future, much more precise data, may well show some deviations from this behavior.

MSC:

83-02 Research exposition (monographs, survey articles) pertaining to relativity and gravitational theory
83F05 Relativistic cosmology
85A40 Astrophysical cosmology
83C10 Equations of motion in general relativity and gravitational theory
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