O’Neil Inequality for Convolutions Associated with Gegenbauer Differential Operator and Some Applications. Journal of Mathematical Study, [S. l.], v. 53, n. 1, p. 90–124, 2020. DOI: 10.4208/jms.v53n1.20.05. Disponível em: https://www.global-sci.com/index.php/jms/article/view/13365. Acesso em: 5 dec. 2025.