EXPLORING PRODUCT HILBERT SPACES: PROPERTIES AND FUNDAMENTAL RESULTS . Phoenix: International Multidisciplinary Research Journal ( Peer reviewed High Impact Journal ), [S. l.], v. 1, n. 3, p. 10–16, 2023. DOI: 10.5281/nj5bwn02. Disponível em: https://pimrj.org/index.php/pimrj/article/view/70.. Acesso em: 10 aug. 2025.