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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 [Formula: see text] operator matrix functions. While these notions are new even in the bounded case, we cover operator polynomials with un...
| Autores principales: | , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
Springer International Publishing
2022
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9246819/ https://www.ncbi.nlm.nih.gov/pubmed/35789901 http://dx.doi.org/10.1007/s11785-022-01232-9 |