Sultanzadeh, Fahimeh; Hassani, Mahmood; Omidvar, Mohsen Erfanian; Kamyabi-Gol, Rajab Ali Sharpening lower bound in some inequalities for frames in Hilbert spaces. (English) Zbl 1494.42036 Korean J. Math. 29, No. 4, 725-732 (2021). MSC: 42C15 47A30 PDFBibTeX XMLCite \textit{F. Sultanzadeh} et al., Korean J. Math. 29, No. 4, 725--732 (2021; Zbl 1494.42036) Full Text: DOI
Bajmaeh, Akram Babri; Omidvar, Mohsen Erfanian A note on some inequalities for the \(b\)-numerical radius and \(b\)-norm in 2-Hilbert space operators. (English) Zbl 07139797 Korean J. Math. 27, No. 1, 165-173 (2019). MSC: 47A12 47A30 47A63 PDFBibTeX XMLCite \textit{A. B. Bajmaeh} and \textit{M. E. Omidvar}, Korean J. Math. 27, No. 1, 165--173 (2019; Zbl 07139797) Full Text: DOI
Davarpanah, Seyed Mohammad; Omidvar, Mohsen Erfanian; Moradi, Hamid Reza Triple centralizers of \({C^*}\)-algebras. (English) Zbl 07139783 Korean J. Math. 26, No. 4, 799-808 (2018). MSC: 47C15 43A22 42A45 PDFBibTeX XMLCite \textit{S. M. Davarpanah} et al., Korean J. Math. 26, No. 4, 799--808 (2018; Zbl 07139783) Full Text: DOI