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๐ SIMILAR VOLUMES
This English edition is almost identical to the German original Lineare Operatoren in Hilbertriiumen, published by B. G. Teubner, Stuttgart in 1976. A few proofs have been simplified, some additional exercises have been included, and a small number of new results has been added (e.g., Theorem 11.11
This classic textbook introduces linear operators in Hilbert Space, and presents the geometry of Hilbert space and the spectral theory of unitary and self-adjoint operators. 1961, 1963 edition.This classic textbook by two mathematicians from the U.S.S.R.'s prestigious Kharkov Mathematics Institute i
## Abstract In this paper we study linear fractional relations defined in the following way. Let โ๏ธ~__i__~ and โ๏ธ~__i__~ ^โฒ^, __i__ = 1, 2, be Hilbert spaces. We denote the space of bounded linear operators acting from โ๏ธ~__j__~ to โ๏ธ~__i__~ ^โฒ^ by __L__ (โ๏ธ~__j__~ , โ๏ธ~__i__~ ^โฒ^). Let __T__ โ