ARTAMONOV, S. On some constructions of a non-periodic modulus of smoothness related to the Riesz derivative. Eurasian Mathematical Journal, [S. l.], v. 9, n. 2, p. 11–21, 2018. DOI: 10.32523/2077-9879-2018-9-2-11-21. Disponível em: https://emj.enu.kz/index.php/main/article/view/112. Acesso em: 20 oct. 2026.