PHUKON, A.; NARZARY, N. . Hyponormality of Toeplitz Operators on Symmetric-type Circulant Trigonometric Polynomial Symbols: An Extremal Case. Communications in Mathematics and Applications, [S. l.], v. 15, n. 3, 2025. Disponível em: https://rgnpublications.com/journals/index.php/cma/article/view/2891. Acesso em: 22 feb. 2025.