32 citations · 87 across the 9 of their papers we have counts for
9 papers
On stability of subelliptic harmonic maps with potential
Tian Chong, Yuxin Dong, Guilin Yang
In this paper, we investigate the stability problem of subelliptic harmonic maps with potential. First, we derive the first and second variation formulas for subelliptic harmonic m…
Pseudo-Harmonic Maps From Pseudo-Hermitian Manifolds to Riemannian Manifolds
Yibin Ren, Guilin Yang
In this paper, we discuss the heat flow of a pseudo-harmonic map from a closed pseudo-Hermitian manifold to a Riemannian manifold with non-positive sectional curvature, and prove t…
On harmonic and pseudoharmonic maps from strictly pseudoconvex CR manifolds
Tian Chong, Yuxin Dong, Yibin Ren +1
In this paper, we give some rigidity results for both harmonic and pseudoharmonic maps from CR manifolds into Riemannian manifolds or Kahler manifolds. Some basicity, pluriharmoni…
Liouville theorem for Pseudoharmonic maps from Sasakian manifolds
Yibin Ren, Guilin Yang, Tian Chong
In this paper, we derive a sub-gradient estimate for pseudoharmonic maps from noncompact complete Sasakian manifolds which satisfy CR sub-Laplace comparison property, to simply-con…
Neutrino signals from ultracompact minihalos and constraints on the primordial curvature perturbation
Yupeng Yang, Guilin Yang, Hongshi Zong
Compared with that of standard dark matter halos, the density profile of the recently proposed new kind of dark matter structure named ultracompact minihalos (UCMHs) is steeper and…
Dark Matter Decay and the Abundance of Ultracompact Minihalos
Yupeng Yang, Guilin Yang, Hongshi Zong
Ultracompact minihalos would be formed if there are larger density perturbations () in the earlier epoch. The density profile of them is steeper than the standa…
The contribution of ultracompact dark matter minihalos to the isotropic radio background
Yupeng Yang, Guilin Yang, Xiaoyuan Huang +3
The ultracompact minihalos could be formed during the earlier epoch of the universe. The dark matter annihilation within them is very strong due to the steep density profile, $ρ\si…
Liouville theorems for F-harmonic maps and their applications
Yuxin Dong, Hezi Lin, Guilin Yang
We prove several Liouville theorems for F-harmonic maps from some complete Riemannian manifolds by assuming some conditions on the Hessian of the distance function, the degrees of…
Standardization, Distance, Host Galaxy Extinction of Type Ia Supernova and Hubble Diagram from the Flux Ratio Method
Bo Yu, Gui-Lin Yang, Tan Lu
In this paper we generalize the flux ratio method Bailey et al. (2009) to the case of two luminosity indicators and search the optimal luminosity-flux ratio relations on a set of s…