Moy-Prasad Maps for SL(2) over extensions of $Q_2$
  A parametrization for characters of abelian quotients of compact subgroups of G := SL2(F) is constructed for F an algebraic extension of Q2 that corresponds to the Moy-Prasad maps of fields of odd residual characteristic. 
Terence Joseph K{\i}vran-Swaine
math.RT math.NT