Abstract
How to check if a given matrix is a nonsingular matrix is important. In the recent paper, several simple criteria, as well as a necessary condition for nonsingular matrices, have been obtained. Inspired by these results, we partition the row and column index set of square matrix, construct a positive diagonal matrix according to the elements and row sum, column sum of the matrix as well, then obtain a new criterion for the nonsingular matrices, and extend the criteria of nonsingular matrices. Finally, a numerical example for the effectiveness of the proposed criterion is presented.
Publisher
Trans Tech Publications, Ltd.
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