On the orthogonality of a system of solenoidal functions in a three-dimensional cube. Kazakh Mathematical Journal, [S. l.], v. 25, n. 2, p. 45–62, 2025. DOI: 10.70474/aggv2f03. Disponível em: https://mathjournal.kz/index.php/kmj/article/view/53. Acesso em: 4 jul. 2025.