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arXiv · 2504.14308

The Schur complements for $SDD_{1}$ matrices and their application to linear complementarity problems

Yang Hu·Jianzhou Liu·Wenlong Zeng
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Abstract

In this paper we propose a new scaling method to study the Schur complements of $SDD_{1}$ matrices. Its core is related to the non-negative property of the inverse $M$-matrix, while numerically improving the Quotient formula. Based on the Schur complement and a novel norm splitting manner, we establish an upper bound for the infinity norm of the inverse of $SDD_{1}$ matrices, which depends solely on the original matrix entries. We apply the new bound to derive an error bound for linear complementarity problems of $B_{1}$-matrices. Additionally, new lower and upper bounds for the determinant of $SDD_{1}$ matrices are presented. Numerical experiments validate the effectiveness and superiority of our results.

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Yang Hu, Jianzhou Liu, Wenlong Zeng. 2025-04-19. The Schur complements for $SDD_{1}$ matrices and their application to linear complementarity problems. https://arxiv.org/abs/2504.14308

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