Dauitbek Д. CONVEXITY AND CONCAVITY IN SUBMAJORIZATION INEQUALITIES FOR τ-MEASURABLE OPERATORS. Journal of Mathematics, Mechanics and Computer Science, [S. l.], v. 128, n. 4, p. 3–11, 2025. DOI: 10.26577/JMMCS202512841. Disponível em: https://bm.kaznu.kz/index.php/kaznu/article/view/1786. Acesso em: 9 feb. 2026.