Strong gravitational lensing constraints on holographic dark energy
  Strong gravitational lensing (SGL) has provided an important tool for probing
galaxies and cosmology. In this paper, we use the SGL data to constrain the
holographic dark energy model, as well as models that have the same parameter
number, such as the $w$CDM and Ricci dark energy models. We find that only
using SGL is difficult to effectively constrain the model parameters. However,
when the SGL data are combined with CBS (CMB+BAO+SN) data, the reasonable
estimations can be given and the constraint precision is improved to a certain
extent, relative to the case of CBS only. Therefore, SGL is an useful way to
tighten constraints on model parameters.
