Boson Realization of the su(3)-Algebra. I
  Following a general form for the Schwinger boson representation of the su(M+1) Lipkin model presented in the previous paper, three types of the orthogonal sets characterizing the su(3)-algebra are proposed. In these three, third is presented in Appendix. The intrinsic state is specified by two quantum numbers and two excited state generating operators play a central role. 
C.Providencia (Univ. de Coimbra, Portugal), J.da Providencia (Univ. de   Coimbra, Portugal), Y.Tsue (Kochi Univ., Japan) and...