伟大 发表于 2025-3-28 14:49:35
http://reply.papertrans.cn/23/2271/227027/227027_41.pngfrozen-shoulder 发表于 2025-3-28 22:09:40
https://doi.org/10.1007/b101825 .(λ − .).. in earlier chapters. Here we are concerned with the case when the system matrix is a unitary operator acting on an infinite dimensional Hilbert space. Characteristic operator functions are transfer functions of such systems. In mathematical system theory often the starting point is the iepicondylitis 发表于 2025-3-29 00:13:32
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https://doi.org/10.1007/b101825he results are illustrated by various examples. In particular, it is explained in detail how under the Gelfand transformation piecewise continuous functions become continuous. Special attention is paid to finitely generated commutative Banach algebras and to the Banach algebra generated by a compact填料 发表于 2025-3-29 10:34:39
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Introductionand the first element of operator theory. The text are intended to concisely present a variety of classses of linear operators, each with its own character, theory, techniques and tools. For each of the classes, various differential and integral operators motivate or illustrate the main result. Althagglomerate 发表于 2025-3-29 18:59:10
Operators in Triangular Formlogues of matrices in upper triangular form. Volt erra operators with a one dimensional imaginary part provide the simplest examples and they are identified up to unitary equivalence. In this chapter all operators act on a separable Hilbert space ., and the elements of a chain are assumed to be orthpericardium 发表于 2025-3-29 21:46:44
Multiplicative Lower-Upper Triangular Decompositions of Operatorsnging problem of .-decomposition of certain operators. The theorems which are presented encompass classical results from Linear Algebra which show that, under certain conditions, a matrix can be represented as a product of a lower with an upper triangular matrix. Also, the possibility of factoring cMercurial 发表于 2025-3-30 01:36:44
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