Singular Value Inequalities for Concave and Convex Functions of Matrix Sums and Products. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 18, n. 1, p. 5689, 2025. DOI: 10.29020/nybg.ejpam.v18i1.5689. Disponível em: https://www.ejpam.com/ejpam/article/view/5689. Acesso em: 23 feb. 2026.