J. Korean Math. Soc. 2020; 57(4): 1053-1057
Online first article March 9, 2020 Printed July 1, 2020
https://doi.org/10.4134/JKMS.j190751
Copyright © The Korean Mathematical Society.
Ju Myung Kim
Sejong University
We indicate that some results in \cite{2} are wrong, and obtain some new results on them.
Keywords: Banach operator ideal, nuclear operator
MSC numbers: 46B28, 46B45, 47L20
Supported by: This work was supported by National Research Foundation of Korea (NRF-2018 R1D1A1B07043566).
2019; 56(1): 225-237
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