Expansion theory for the elliptic motion of arbitrary eccentricity and semi-major axis. VIII. Ellipitic expansions in terms of the sectorial variables for the ninth, tenth, eleventh, and twelfth categories (Q1090110)

[For the former parts see the review above (Zbl 0619.70010).] Elliptic expansions in terms of the sectorial variables \(\theta_ j^{(i)}\) are established analytically and computationally for the ninth, tenth, eleventh, and twelfth categories according to our adopted scheme of presentation drawn in Paper V. Finally, the first collection of completed elliptic expansions in terms of \(\theta_ j^{(i)}\) so explored is given in Appendix A for the guidance of the reader.