Have FETI-DP or BDDC methods been applied to alternative FEM discretizations - for example, least squares finite elements? My Google searching doesn't seem to yield many results, so I'm wondering if I've missed any field-specific papers.  If not, is there a reason for this (beyond lack of interest or funding)?Edit: I meant FETI-DP or BDDC as preconditioners, primarily.
FETI-DP or BDDC with least squares FEM?
finite element;least squares