Approximation of block numerical range for Hamiltonian operator matrix
The aim of this paper is to derive approximations for the block numerical range of unbounded block operator matrices that are block dominant. To illustrate our approach, we calculate the quartic numerical range of a concrete Hamiltonian operator matrix.
Authors
- Alatancang Chen (ORCID: https://orcid.org/0000-0002-3721-5182)
- Jiahui Yu (ORCID: https://orcid.org/0000-0002-1215-3851)
- Jie Liu
Institutions
- Inner Mongolia Normal University (CN)
- Hohhot Minzu College (CN)
Publication Details
- Journal
- Thermal Science
- Published
- 2025-01-01
- DOI
- https://doi.org/10.2298/tsci2503085y
- Primary Topic
- Matrix Theory and Algorithms
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Natural Science Foundation of Inner Mongolia