322 citations
- Beijing Normal UniversityCN45 papers
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- Institute of High Energy PhysicsCN8 papers
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Showing 2015 · astro-ph.COShow all
2 papers · 2 filters
astro-ph.CO2015★ 10 cited
Direct reconstruction of dynamical dark energy from observational Hubble parameter data
Zhi-E Liu, Hao-Ran Yu, Tong-Jie Zhang +1
Reconstructing the evolution history of the dark energy equation of state parameter directly from observational data is highly valuable in cosmology, since it contains subst…
astro-ph.CO2015★ 9 cited
Reconstructing equation of state of dark energy with principal component analysis
Zhi-E Liu, Hao-Feng Qin, Jie Zhang +2
We represent a nonparametric method to reconstruct the equation of state for dark energy directly from observational Hubble parameter data. We use principal component analysis (PCA…