There is certainly no need for me to introduce Frank Yang, the towering master of symmetries who has the audacity to suggest to Nature what She might be, non-abelian. Nature, somewhat astonished, agree.
Chang, C. Y. (2019). Symplectic geometry of complex projective spaces [master's thesis, National Tsing Hua University]. Airiti Library. https://www.airitilibrary.com/Article/Detail?DocID=U0016-0206202016135514