Boyars’kyi, O. M., & Skrypnik, T. V. (1997). Degenerate orbits of adjoint representation of orthogonal and unitary groups regarded as algebraic submanifolds. Ukrains’kyi Matematychnyi Zhurnal, 49(7), 895–905. Retrieved from https://umj.imath.kiev.ua/index.php/umj/article/view/5079