Semistability of logarithmic cotangent bundle on some projective   manifolds
  In this paper, we investigate the semistability of logarithmic de Rham sheaves on a smooth projective variety, under suitable conditions. In particular when the Picard number is one, we obtain results for any log Del Pezzo surface, log Fano threefolds, and for log Fano $n$-folds of dimension $n\leq 6$. 
Seshadri Chintapalli and Jaya N. N. Iyer
math.AG