Spectral decomposition of self-adjoint operators in Pontryagin and Krein spaces
We consider a self-adjoint operator acting in a Krein space and possessing an invariant subspace that is maximal nonnegative and decomposes into a direct sum of a uniformly positive (i.e., equivalent to a Hilbert space with respect to the inner pseudoscalar product) and a finite-dimensional neutral...
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| Formato: | Artigo |
| Lenguaje: | Inglês |
| Publicado: |
Peoples’ Friendship University of Russia (RUDN University)
2025-01-01
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| Colección: | Современная математика: Фундаментальные направления |
| Materias: | |
| Acceso en línea: | https://journals.rudn.ru/CMFD/article/viewFile/46629/25623 |
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