Multivariable pseudospectrum in $C^*$-algebras
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866929266885656576 |
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| author | Cerjan, Alexander Lauric, Vasile Loring, Terry A. |
| author_facet | Cerjan, Alexander Lauric, Vasile Loring, Terry A. |
| contents | We look at various forms of spectrum and associated pseudospectrum that can be defined for noncommuting $d$-tuples of Hermitian elements of a $C^*$-algebra. The emphasis is on theoretical calculations of examples, in particular for noncommuting pairs and triple of operators on infinite dimensional Hilbert space. In particular, we look at the universal pair of projections in a $C^*$-algebra, the usual position and momentum operators, and triples of tridiagonal operators. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_15934 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Multivariable pseudospectrum in $C^*$-algebras Cerjan, Alexander Lauric, Vasile Loring, Terry A. Operator Algebras We look at various forms of spectrum and associated pseudospectrum that can be defined for noncommuting $d$-tuples of Hermitian elements of a $C^*$-algebra. The emphasis is on theoretical calculations of examples, in particular for noncommuting pairs and triple of operators on infinite dimensional Hilbert space. In particular, we look at the universal pair of projections in a $C^*$-algebra, the usual position and momentum operators, and triples of tridiagonal operators. |
| title | Multivariable pseudospectrum in $C^*$-algebras |
| topic | Operator Algebras |
| url | https://arxiv.org/abs/2402.15934 |