SOBOLEV SPACES ON HYPERGROUP GELFAND PAIRS. Far East Journal of Mathematical Sciences (FJMS), [S. l.], v. 142, n. 1, p. 57–69, 2024. DOI: 10.17654/097208712505. Disponível em: https://pphmjopenaccess.com/fejms/article/view/2430. Acesso em: 5 jan. 2026.