hypothyroidism
发表于 2025-3-21 16:18:11
书目名称Contributions to Operator Theory in Spaces with an Indefinite Metric影响因子(影响力)<br> http://impactfactor.cn/if/?ISSN=BK0237201<br><br> <br><br>书目名称Contributions to Operator Theory in Spaces with an Indefinite Metric影响因子(影响力)学科排名<br> http://impactfactor.cn/ifr/?ISSN=BK0237201<br><br> <br><br>书目名称Contributions to Operator Theory in Spaces with an Indefinite Metric网络公开度<br> http://impactfactor.cn/at/?ISSN=BK0237201<br><br> <br><br>书目名称Contributions to Operator Theory in Spaces with an Indefinite Metric网络公开度学科排名<br> http://impactfactor.cn/atr/?ISSN=BK0237201<br><br> <br><br>书目名称Contributions to Operator Theory in Spaces with an Indefinite Metric被引频次<br> http://impactfactor.cn/tc/?ISSN=BK0237201<br><br> <br><br>书目名称Contributions to Operator Theory in Spaces with an Indefinite Metric被引频次学科排名<br> http://impactfactor.cn/tcr/?ISSN=BK0237201<br><br> <br><br>书目名称Contributions to Operator Theory in Spaces with an Indefinite Metric年度引用<br> http://impactfactor.cn/ii/?ISSN=BK0237201<br><br> <br><br>书目名称Contributions to Operator Theory in Spaces with an Indefinite Metric年度引用学科排名<br> http://impactfactor.cn/iir/?ISSN=BK0237201<br><br> <br><br>书目名称Contributions to Operator Theory in Spaces with an Indefinite Metric读者反馈<br> http://impactfactor.cn/5y/?ISSN=BK0237201<br><br> <br><br>书目名称Contributions to Operator Theory in Spaces with an Indefinite Metric读者反馈学科排名<br> http://impactfactor.cn/5yr/?ISSN=BK0237201<br><br> <br><br>
LIMIT
发表于 2025-3-21 22:17:31
Perturbations of Krein spaces preserving the nonsingularity of the critical point infinity,n we show that these properties remain true for a certain perturbation of the operator, acting in a slightly perturbed Krein space. This result is applied to elliptic differential operators with indefinite weights and to certain difference operators.
笨重
发表于 2025-3-22 04:15:48
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Inflammation
发表于 2025-3-22 04:44:10
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Hallowed
发表于 2025-3-22 12:24:47
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钢盔
发表于 2025-3-22 16:41:43
Visualisierung meteorologischer Datenat similar realizations exist in the “nonstationary setting”, i.e. when one considers upper triangular contractions (which appear in time-variant system theory as “transfer functions” of dissipative systems). Two approaches are used: complementation theory and an approach based on the theory of rela
钢盔
发表于 2025-3-22 17:51:43
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CARK
发表于 2025-3-22 23:21:48
Implementation der Tele-Media-Architektur,stems and separated selfadjoint boundary conditions. We show, that . is isomet-rically isomorphic to the operator of multiplication with the independent variable in the Hilbert space ..(ℝ), where the matrix-valued mapping . can be calculated via the Stieltjes inversion formula from a Nevanlinna matr
声明
发表于 2025-3-23 04:05:05
The Epidemiology of Parasitic Diseases in ,genvalue problem (when .(λ) = λ . − .), the spectrum of .(λ) is contained in its numerical range. Properties of the numerical range are investigated with special emphasis on the cases when .(λ) has only real spectrum (and, possibly, the point at infinity) and when the coefficients of the matrix poly
暴发户
发表于 2025-3-23 09:29:20
https://doi.org/10.1007/978-3-642-60725-7tical points, see ; if neither of these points is a singular critical point then . is similar to a Hilbert space selfadjoint operator, that is, it is a scalar operator with real spectrum (see for the definition and properties of the Krein space operators).