visors
          of degree i, where i = 1,2,...,DINFZ.

  KRONR   (output) INTEGER array, dimension (MAX(N,M)+1)
          The leading NKROR elements of this array contain the
          right Kronecker (column) indices.

  KRONL   (output) INTEGER array, dimension (MAX(N,P)+1)
          The leading NKROL elements of this array contain the
          left Kronecker (row) indices.

  AF      (output) COMPLEX*16 array, dimension (LDAF,N+MIN(P,M))
          The leading NU-by-NU part of this array contains the
  