The class of D(T)–operators on Hilbert space | ||
| International Journal of Nonlinear Analysis and Applications | ||
| دوره 12، Special Issue، اسفند 2021، صفحه 1293-1298 اصل مقاله (327.97 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22075/ijnaa.2021.5645 | ||
| نویسنده | ||
| Elaf S Abdulwahid* | ||
| Tikrit University – College of Education for Women/ Department of Mathematics, Iraq | ||
| چکیده | ||
| The purpose of this paper is to introduce a new class operator on separable Hilbert space. The operator T ∈ B(H) is called D(T)-operator if there exist U ∈ B(H), U≠0, I such that T*TU = UT*T, where T* adjoint operator of T. Then, some main properties of the class of D(T)-operator are studied in this research. | ||
| کلیدواژهها | ||
| D(T)-operator؛ quasi-normal operator؛ The sepctrum of normal oprator؛ Hilbert space | ||
| مراجع | ||
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