COMPLETION FOR TIGHT SIGN-CENTRAL MATRICES

Title & Authors
COMPLETION FOR TIGHT SIGN-CENTRAL MATRICES
Cho, Myung-Sook; Hwang, Suk-Geun;

Abstract
A real matrix A is called a sign-central matrix if for, every matrix $\small{\tilde{A}}$ with the same sign pattern as A, the convex hull of columns of $\small{\tilde{A}}$ contains the zero vector. A sign-central matrix A is called a tight sign-central matrix if the Hadamard (entrywise) product of any two columns of A contains a negative component. A real vector x
Keywords
sign-central mztrix;tight sign-central matrix;
Language
English
Cited by
References
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