WU, Yanqiu. NOTES ON YOUNG AND ARITHMETIC-GEOMETRIC MEAN INEQUALITIES FOR MATRICES. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 37, p. 347–350, 2017. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6704. Acesso em: 16 sep. 2026.