Geometry and cohomology of Khovanov-Springer varieties
  The Khovanov-Springer variety X(n) is a certain subvariety of the variety of flags of length 2n, which has been studied from various different points of view. We give a new proof of the ring structure of the cohomology of X(n) and relate it to some interesting geometric, combinatorial and algebraic phenomena. 
Philip Eve and Neil Strickland
math.AT math.AG