K. C. ‎Sivakumar

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math.RA2023

A short survey of $Z$ -matrices and new results on the subclass of $F_{0}$ -matrices

Samir Mondal, K. C. Sivakumar

A real square matrix $A$ of order $n \times n (n \geq 3)$ is called an $F_{0}$ -matrix, if it is a $Z$ -matrix (off-diagonal entries nonpositive), all of whose principal submatrices o…

math.RA2016

Vanishing Pseudo Schur Complements, Reverse Order Laws, Absorption Laws and Inheritance Properties

Kavita Bisht, K. C. Sivakumar

The problem of when the vanishing of a (generalized) Schur complement of a block matrix (corresponding to the leading principal subblock) implies that the other (generalized) Schur…

A short survey of Z-matrices and new results on the subclass of F0​-matrices

Vanishing Pseudo Schur Complements, Reverse Order Laws, Absorption Laws and Inheritance Properties

A short survey of $Z$ -matrices and new results on the subclass of $F_{0}$ -matrices