Quasi-unitary equivalence and generalised norm resolvent convergence
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arXiv
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| Hauptverfasser: | , |
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| Format: | Preprint |
| Veröffentlicht: |
2025
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| _version_ | 1866909556302413824 |
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| author | Post, Olaf Simmer, Jan |
| author_facet | Post, Olaf Simmer, Jan |
| contents | The purpose of this article is to give a short introduction to the concept of quasi-unitary equivalence of quadratic forms and its consequences. In particular, we improve an estimate concerning the transitivity of quasi-unitary equivalence for forms. We illustrate the abstract setting by two classes of examples. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_22611 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Quasi-unitary equivalence and generalised norm resolvent convergence Post, Olaf Simmer, Jan Spectral Theory The purpose of this article is to give a short introduction to the concept of quasi-unitary equivalence of quadratic forms and its consequences. In particular, we improve an estimate concerning the transitivity of quasi-unitary equivalence for forms. We illustrate the abstract setting by two classes of examples. |
| title | Quasi-unitary equivalence and generalised norm resolvent convergence |
| topic | Spectral Theory |
| url | https://arxiv.org/abs/2503.22611 |