S-spectrum and numerical range of a quaternionic operator
نویسندگان
چکیده
We study the numerical range of bounded linear operators on quaternionic Hilbert spaces and its relation with S-spectrum. The class complex is introduced upper bild normal completely characterized in this setting.
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ژورنال
عنوان ژورنال: Journal of Mathematical Analysis and Applications
سال: 2023
ISSN: ['0022-247X', '1096-0813']
DOI: https://doi.org/10.1016/j.jmaa.2022.126834