Tangent cones of Hermitian Yang-Mills connections with isolated   singularities
  We give a simple direct proof of uniqueness of tangent cones for singular projectively Hermitian Yang-Mills connections on reflexive sheaves at isolated singularities modelled on $\mu$-polystable holomorphic bundles over $\mathbf{P}^{n-1}$. 
Adam Jacob, Henrique S\'a Earp, Thomas Walpuski
math.DG