SID AHMED, Ould Ahmed Mahmoud. ON THE JOINT (m, q)-PARTIAL ISOMETRIES AND THE JOINT m- INVERTIBLE TUPLES OF COMMUTING OPERATORS ON A HILBERT SPACE. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 40, p. 438–463, 2018. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/7005. Acesso em: 7 oct. 2026.