Spectral theory of n-normal operators on Hilbert space
Sarah Saleh Abdul Hussein, Hadeel Ali Shubber · Journal of Interdisciplinary Mathematics · 2021
In this work, we define the set which consists of n-normal operators. Also, the sets and and defined from . Firstly, the set is proved Banach algebra and establish consists of n-normal operators. Secondly is shown C* -algebra, also some properties and theories are proved to reach a circular for the spectral theory. Finally, this study is established and proved generalization the spectral theory of n-normal operators.