Classification of the Quasifiliform Nilpotent Lie Algebras of Dimension 9

Figure 1

Case A: 𝛼₁₁≠0; classification of the nonisomorphic QFLA of dimension 9 (the last 7 values, 0,1,0,0,0,0,0, common to the 19 families have been omitted from the figure for simplicity).