Choudhury, Projesh Nath; Sivakumar, K. C. Nesbitt and Shapiro cyclic sum inequalities for positive definite matrices. (English) Zbl 1486.15027 Adv. Oper. Theory 7, No. 1, Paper No. 7, 11 p. (2022). MSC: 15A45 47A63 15B57 26D15 PDFBibTeX XMLCite \textit{P. N. Choudhury} and \textit{K. C. Sivakumar}, Adv. Oper. Theory 7, No. 1, Paper No. 7, 11 p. (2022; Zbl 1486.15027) Full Text: DOI arXiv
Tan, Yunfei; Xu, Qingxiang; Yan, Guanjie Weighted Moore-Penrose inverses of products and differences of weighted projections on indefinite inner-product spaces. (English) Zbl 1460.46046 Adv. Oper. Theory 5, No. 3, 796-815 (2020). MSC: 46L08 15A09 47A05 PDFBibTeX XMLCite \textit{Y. Tan} et al., Adv. Oper. Theory 5, No. 3, 796--815 (2020; Zbl 1460.46046) Full Text: DOI
Kalauch, A.; Lavanya, S.; Sivakumar, K. C. \(M\)-operators on partially ordered Banach spaces. (English) Zbl 1454.47048 Adv. Oper. Theory 4, No. 2, 481-496 (2019). MSC: 47B60 15B48 46B40 47B65 PDFBibTeX XMLCite \textit{A. Kalauch} et al., Adv. Oper. Theory 4, No. 2, 481--496 (2019; Zbl 1454.47048) Full Text: DOI Euclid
Jena, Litismita Extensions of theory of regular and weak regular splittings to singular matrices. (English) Zbl 1390.15012 Adv. Oper. Theory 3, No. 2, 411-422 (2018). MSC: 15A09 65F15 65F20 PDFBibTeX XMLCite \textit{L. Jena}, Adv. Oper. Theory 3, No. 2, 411--422 (2018; Zbl 1390.15012) Full Text: DOI Euclid