DARBINYAN, A.; TUMANYAN, A. On index stability of Noetherian differential operators in anisotropic Sobolev spaces . Eurasian Mathematical Journal, [S. l.], v. 10, n. 1, 2024. Disponível em: https://emj.enu.kz/index.php/main/article/view/136. Acesso em: 22 dec. 2024.