• Determinant and Inverse of Meet and Join Matrices 

      Altinisik, Ercan; Tuglu, Naim; Haukkanen, Pentti (2007)
      article
      We define meet and join matrices on two subsets X and Y of a lattice (P,≼ ) with respect to a complex-valued function f on P by (X,Y) f = ( f (xi ∧ yi)) and [X,Y] f = ( f (xi ∨ yi)), respectively. We present expressions ...