Some results on S-numerical range of operator matrices
A linear operator on a Hilbert space may be approximated with finite matrices by choosing an orthonormal basis of the Hilbert space. In this paper, we found an approximation of the S-numerical range of bounded and unbounded operator matrices by variation methods. Applications to Hain-L st operator a...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Salahaddin University-Erbil
2020-06-01
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| Series: | Zanco Journal of Pure and Applied Sciences |
| Subjects: | |
| Online Access: | https://zancojournals.su.edu.krd/index.php/JPAS/article/view/3374 |