脆弱么 发表于 2025-3-23 10:17:13

http://reply.papertrans.cn/24/2373/237201/237201_11.png

Fibrin 发表于 2025-3-23 16:58:40

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 relations in Hilbert spaces.

是限制 发表于 2025-3-23 20:36:32

http://reply.papertrans.cn/24/2373/237201/237201_13.png

macrophage 发表于 2025-3-24 01:36:02

http://reply.papertrans.cn/24/2373/237201/237201_14.png

Control-Group 发表于 2025-3-24 03:22:26

http://reply.papertrans.cn/24/2373/237201/237201_15.png

hermetic 发表于 2025-3-24 06:59:46

Special realizations for Schur upper triangular operators,at 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 relations in Hilbert spaces.

coddle 发表于 2025-3-24 13:45:36

http://reply.papertrans.cn/24/2373/237201/237201_17.png

贸易 发表于 2025-3-24 17:05:56

http://reply.papertrans.cn/24/2373/237201/237201_18.png

几何学家 发表于 2025-3-24 20:58:40

Multiplicative perturbations of positive operators in Krein spaces,tical 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).

oracle 发表于 2025-3-25 02:20:25

G. Schild,M. Corbel,P. Corran,P. MinorThis volume is dedicated to Professor Heinz Langer to honor him for his outstanding contributions to mathematics. His results in spectral analysis and its applications, in particular in spaces with an indefinite metric, are fundamental. Five main themes emerge in Heinz Langer’s work, some of them are closely connected or have much in common:
页: 1 [2] 3 4 5 6 7
查看完整版本: Titlebook: Contributions to Operator Theory in Spaces with an Indefinite Metric; The Heinz Langer Ann Aalt Dijksma,Israel Gohberg,Reinhard Mennicken B