Yik-Hoi Au-Yeung, A Theorem on a Mapping from a Sphere to the Circle and the Simultaneous Diagonalization of Two Hermitian Matrices, Proceedings of the American Mathematical Society, Vol. 20, No. 2 ...

Some applications to the Ricci flow of left-invariant metrics on Lie groups concerning diagonalization are also given. This monthly journal, begun in 1950, is devoted entirely to research in pure and ...