Some results on S-numerical range of operator matrices
Berivan faris azeez, Ahmed Muhammad
Zanco Journal of Pure and Applied Sciences · 2020
doi:10.21271/zjpas.32.3.7 (opens in a new tab)
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Abstract
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 and Stokes operator are given.
Abstract licence: CC BY
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