Enumeration of Splitting Subspaces over Finite Fields
  We discuss an elementary, yet unsolved, problem of Niederreiter concerning the enumeration of a class of subspaces of finite dimensional vector spaces over finite fields. A short and self-contained account of some recent progress on this problem is included and some related problems are discussed. 
Sudhir R. Ghorpade and Samrith Ram
math.CO cs.IT math.IT