ZAKARYAN, M. A.; TZUTZULYAN, A. V. THE FREDHOLM CRITERION AND INDEX CALCULATION OF TEOPLITS OPERATORS IN SOME HILBERT SPACES OF ANALYTIC FUNCTIONS. Proceedings of the YSU A: Physical and Mathematical Sciences, Yerevan, Armenia, v. 42, n. 2 (216), p. 23–29, 2023. DOI: 10.46991/PYSU:A/2008.42.2.023. Disponível em: https://journals.ysu.am/index.php/proceedings-phys-math/article/view/vol42_no2_2008_p023-029. Acesso em: 22 jul. 2024.