Some Results on Perturbation of Duality of OPV-Frames. Armenian Journal of Mathematics, [S. l.], v. 16, n. 6, p. 1–13, 2024. DOI: 10.52737/18291163-2024.16.6-1-13. Disponível em: https://armjmath.sci.am/index.php/ajm/article/view/1150.. Acesso em: 19 sep. 2024.