Pseudo Numerical Ranges and Spectral Enclosures
We introduce the new concepts of pseudo numerical range for operator functions and families of sesquilinear forms as well as the pseudo block numerical range for n×n operator matrix functions. While these notions are new even in the bounded case, we cover operator polynomials with unbounded coeffici...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Birkhauser
2022
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| Subjects: | |
| Online Access: | View Fulltext in Publisher |