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Choudhury, PN and Sivakumar, KC (2022) Nesbitt and Shapiro cyclic sum inequalities for positive definite matrices. In: Advances in Operator Theory, 7 (1).
Choudhury, PN and Eagambaram, N and Sivakumar, KC and Sushmitha, P (2021) On the matrix class Q0 and inverse monotonicity properties of bordered matrices. In: Linear Algebra and Its Applications, 612 . pp. 206-222.
Choudhury, Projesh Nath and Sivakumar, KC (2019) Matrices with positive semidefinite real part. In: LINEAR & MULTILINEAR ALGEBRA .
Choudhury, Projesh Nath and Kannan, Rajesh M and Sivakumar, KC (2018) A NOTE ON LINEAR PRESERVERS OF SEMIPOSITIVE AND MINIMALLY SEMIPOSITIVE MATRICES. In: ELECTRONIC JOURNAL OF LINEAR ALGEBRA, 34 . pp. 687-694.
