Vol. I Gohberg, Israel creator Goldberg, Seymour Kaashoek, Marinus A text Switzerland Springer 1990 monographic xiii+468 Operator theory: Advances and applications - Vol. 49 Spectral theory Toeplitz operator Fredholm operator 9783034875110 https://doi.org/10.1007/978-3-0348-7509-7 https://doi.org/10.1007/978-3-0348-7509-7 20260116122549.0