GEOMETRIC AND DIFFERENTIAL INVARIANTS OF NUMERICAL RANGES UNDER UNITARY EQUIVALENCE. Far East Journal of Mathematical Sciences (FJMS), [S. l.], v. 143, n. 1, p. 11–30, 2025. DOI: 10.17654/0972087126002. Disponível em: https://pphmjopenaccess.com/fejms/article/view/3346. Acesso em: 5 jan. 2026.