Robuta

https://www.ub.edu/ubtv/index.php/video/completely-positive-semidefinite-matrices Completely Positive Semidefinite Matrices: Conic Approximations and Matrix Factorization Ranks |... completely positive matrix factorization semidefinite matrices conic https://arxiv.org/abs/1506.00187 [1506.00187] Four Dimensional Polytopes of Minimum Positive Semidefinite Rank Abstract page for arXiv paper 1506.00187: Four Dimensional Polytopes of Minimum Positive Semidefinite Rank four dimensional positive semidefinite 1506 00187 polytopes https://arxiv.org/abs/1205.5306 [1205.5306] Polytopes of Minimum Positive Semidefinite Rank Abstract page for arXiv paper 1205.5306: Polytopes of Minimum Positive Semidefinite Rank positive semidefinite 1205 5306 polytopes minimum https://arxiv.org/abs/1512.05402 [1512.05402] Optimization over Structured Subsets of Positive Semidefinite Matrices via Column... Abstract page for arXiv paper 1512.05402: Optimization over Structured Subsets of Positive Semidefinite Matrices via Column Generation