Ricci Curvature and Fundamental Groups of Effective Regular Sets. Journal of Mathematical Study, [S. l.], v. 58, n. 1, p. 3–21, 2025. DOI: 10.4208/jms.v58n1.25.01. Disponível em: https://www.global-sci.com/index.php/jms/article/view/13492. Acesso em: 5 dec. 2025.