$\alpha$-Supraposinormality of Operators in Dense Norm-Attainable Classes

Benard Okelo

doi:10.32323/ujma.473484

EN

$\alpha$-Supraposinormality of Operators in Dense Norm-Attainable Classes

Abstract

The notion of supraposinormality was introduced by Rhaly in a superclass of posinormal operators. In this paper, we give an extension of this notion of supraposinormality to $\alpha$-supraposinormality of operators in the dense norm-attainable class.

Keywords

Posinormal operator,Hyponormal operator,Norm-attainable class,$\alpha$-supraposinormality

References

[1] C. S. Kubrusly and B. P. Duggal, On posinormal operators, Adv. Math. Sci. Appl. 17 (1) (2007), 131-147.
[2] G. Leibowitz, Rhaly matrices, J. Math. Anal. Appl. 128 (1) (1987), 272-286.
[3] H. C. Rhaly Jr., A superclass of the posinormal operators, Newyork J. Math. 20 (2014), 497-506.
[4] N. B. Okelo, The norm-attainability of some elementary operators, Appl. Math. E-Notes 13 (2013), 1-7.
[5] N. B. Okelo, J. O. Agure and P. O. Oleche, Certain conditions for norm-attainability of elementary operators and derivations, Int. J. of Math. and Soft Comp. 3 (1) (2013), 1-7.

Details

Primary Language

English

Subjects

Mathematical Sciences

Journal Section

Research Article

Authors

Benard Okelo ^*
0000-0003-3963-1910
Germany

Publication Date

March 20, 2019

Submission Date

October 22, 2018

Acceptance Date

November 29, 2018

Published in Issue

Year 2019 Volume: 2 Number: 1

DOI

https://doi.org/10.32323/ujma.473484

IZ

https://izlik.org/JA34RP72HP

APA

Okelo, B. (2019). $\alpha$-Supraposinormality of Operators in Dense Norm-Attainable Classes. Universal Journal of Mathematics and Applications, 2(1), 42-43. https://doi.org/10.32323/ujma.473484

AMA

1.Okelo B. $\alpha$-Supraposinormality of Operators in Dense Norm-Attainable Classes. Univ. J. Math. Appl. 2019;2(1):42-43. doi:10.32323/ujma.473484

Chicago

Okelo, Benard. 2019. “$\alpha$-Supraposinormality of Operators in Dense Norm-Attainable Classes”. Universal Journal of Mathematics and Applications 2 (1): 42-43. https://doi.org/10.32323/ujma.473484.

EndNote

Okelo B (March 1, 2019) $\alpha$-Supraposinormality of Operators in Dense Norm-Attainable Classes. Universal Journal of Mathematics and Applications 2 1 42–43.

IEEE

[1]B. Okelo, “$\alpha$-Supraposinormality of Operators in Dense Norm-Attainable Classes”, Univ. J. Math. Appl., vol. 2, no. 1, pp. 42–43, Mar. 2019, doi: 10.32323/ujma.473484.

ISNAD

Okelo, Benard. “$\alpha$-Supraposinormality of Operators in Dense Norm-Attainable Classes”. Universal Journal of Mathematics and Applications 2/1 (March 1, 2019): 42-43. https://doi.org/10.32323/ujma.473484.

JAMA

1.Okelo B. $\alpha$-Supraposinormality of Operators in Dense Norm-Attainable Classes. Univ. J. Math. Appl. 2019;2:42–43.

MLA

Okelo, Benard. “$\alpha$-Supraposinormality of Operators in Dense Norm-Attainable Classes”. Universal Journal of Mathematics and Applications, vol. 2, no. 1, Mar. 2019, pp. 42-43, doi:10.32323/ujma.473484.

Vancouver

1.Benard Okelo. $\alpha$-Supraposinormality of Operators in Dense Norm-Attainable Classes. Univ. J. Math. Appl. 2019 Mar. 1;2(1):42-3. doi:10.32323/ujma.473484