# 4 PRESERVING POSITIVITY FOR MATRICES WITH SPARSITY CONSTRAINTS

> Research article (http://arxiv.org/pdf/1406.3408.pdf, 2016) · cited 13× · AI/ML

**Wikidata**: [openalex:W3098909886](https://www.wikidata.org/wiki/openalex:W3098909886)  
**Source**: https://4ort.xyz/entity/4-preserving-positivity-for-matrices-with-sparsity-constraints