佐藤理論
Li, C. (2015). Sato theory on the q {\displaystyle q} -Toda hierarchy and its extension. Chaos, Solitons & Fractals, 76, 10-23.
Willox, R., & Satsuma, J. (2004). Sato theory and transformation groups. A unified approach to integrable systems. In Discrete integrable systems (pp. 17-55). Springer, Berlin, Heidelberg.