Borel Reductions and Cub Games
  It is shown that the power set of $\k$ ordered by the subset relation modulo various versions of the non-stationary deal can be embedded into the partial order of Borel equivalence relations on $2^\k$ under Borel reducibility. Here $\k$ is uncountable regular cardinal with $\k^{<\k}=\k$. 
Vadim Kulikov
math.LO