Some Properties of* - Quasihyponormal Operators
DOI:
https://doi.org/10.61841/93yt8x46Keywords:
Hilbert Spaces, Hyponormal Operators, Quasihyponormal OperatorsAbstract
In this paper, we introduce a new generalization for the hyponormal operator, which is *-quasihyponormal, and discuss some important theorems of this concept, as well as some properties of this operator that have been given following this work. Finally, this work gives another objective: solvability of some types of bounded linear operator called - -commuting operator equations when there is a *-quasihyponormal operator and finding the value of these equations in a Hilbert space H.
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[1] S.K. Berberian, (1976), “Introduction to Hilbert Space,” 2nd ed., Chelsea Publishing Company, New York, N.Y.
[2] N.L. Braha, M. Lohaj, F.H. Marevci and Sh. Lohaj, (2002), “Some Properties of Paranormal and
Hyponormal Operators,” Bulletin of Mathematical Analysis and Applications, Vol. 1, Issu. 2, (23-35).
[3] Shila Devi (1972), ” A New Class of Operators,” Abstract No. 166, Indian Math. Soc. Conference.
[4] P.R. Halmos, (1950), “Normal Dilations and Extension of Operators,” Summa Brasiliensis Math., 2, (124-
134).
[5] Y.M. Han and Ju Hee Son, (2011), “On quasi-M-Hyponormal Operators,” Faculty of Sciences and
Mathematics, University of Nis, Serbia, 25:1 (37-52).
[6] M.S. Lee, (1995), “A Note on Quasi-Similar Quasi-Hyponormal Operators,” J. Korea Soc. Math. Educ.
Ser. B: Pure Appl. Math., 2 No. 2, (91-95).
[7] N.C. Shah and I.H. Sheth, (1975), “Some Results on Quasi-Hyponormal Operators,” J. Indian Math. Soc. 39 (285-291).
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