Study of a Compact Operator . International Journal of Scientific Research in Science and Technology, [S. l.], v. 11, n. 3, p. 837–839, 2024. Disponível em: https://ijsrst.technoscienceacademy.com/index.php/home/article/view/IJSRST24113249. Acesso em: 10 aug. 2025.