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We look for evidence for the evolution in dark energy density by employing Principal Component Analysis (PCA).
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2009
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Holsclaw T. et al., Nonparametric Dark Energy Reconstruction from Supernova Data
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Cai R-G et al., Probing the dynamical behavior of dark energy
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Weinberg D. H. et al., Observational Probes of Cosmic Acceleration
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2011
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Seikel M. et al., Reconstruction of dark energy and expansion dynamics using Gaussian processes
2012
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Zhao G. et al., Examining the evidence for dynamical dark energy
2012
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