On stratified Mukai flops
  We construct a resolution of stratified Mukai flops of type A, D, E_{6, I} by successively blowing up smooth subvarieties. In the case of E_{6, I}, we construct a natural functor which induces an isomorphism between the Chow groups. 
Pierre-Emmanuel Chaput (LMJL), Baohua Fu (LMJL)