小故事
发表于 2025-3-27 00:51:47
Operator Spectral IntegralsLet .(·) be a spectral measure with a compact support supp . ⊂ [., .), −∞ < . < . < ∞. Let .(λ) be an operator-valued function defined on [., .). We consider partitions З of the interval [., .) of the form [., .) = [λ., λ.) ⋃ [λ. λ.) ⋃ ··· Ã [λ., λ.) where λ. = ., λ. = ., and put ⊿.:= [λ. λ.), . = 1,..., ..
看法等
发表于 2025-3-27 03:54:52
General Theory of Asymptotic ConstantsAs a preliminary to the study of limits of operator-valued functions e.Xe. we here collect some facts about different limiting processes for functions from ..(ℝ., d.; ℋ).
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发表于 2025-3-27 08:56:09
Special Classes of Asymptotic ConstantsLet . ∈ dom μ. be selfadjoint. Then it is a natural question to ask which spectral projections of . belong to dorn μ.. The next statement gives a partial answer.
染色体
发表于 2025-3-27 12:56:32
The Invariance of Wave Morphisms and Wave AlgebrasIf we consider the objects μ., dom μ. and ker μ., then it is a natural question to ask under which transformations . → .′ they remain invariant. Clearly, μ. = μ. implies dom μ. = dom μ. and ker μ. = ker μ. and we shall also see that dom μ. = dom μ. implies ker μ. = ker μ.. However, the converse is not true.
troponins
发表于 2025-3-27 14:13:53
Elementary Theory of Wave and Scattering OperatorsIn this section we introduce the expression.which is called the .. Our main interest in the following sections is the investigation of the existence and general properties of several kinds of limits of .(.) with respect to . → ±∞.
instate
发表于 2025-3-27 20:21:01
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Mangle
发表于 2025-3-28 01:39:18
Stationary TheoryThe revolvent .(.) = (. − .). and the spectral measure .(·) of a selfadjoint operator ., together with the spectral parameter λ are called . terms with respect to .. On the other hand, the unitary evolution group e., where . is interpreted as time, is called a . term with respect to ..
Pde5-Inhibitors
发表于 2025-3-28 02:08:22
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Nonconformist
发表于 2025-3-28 10:14:51
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glomeruli
发表于 2025-3-28 14:03:05
Structural Properties of Wave and Scattering Operatorsf . is a fixed identification operator. In this paragraph, which can be considered as a continuation of Paragraphs 9.3 and 9.5, we study some structural properties of wave operators. As in Paragraph 9.2 and the following paragraphs we choose a fixed universal projection ... Moreover, the identification operator . is fixed in this paragraph.