Abstract
A matrix A is called completely positive if it can be decomposed as A = BBT with an entrywise nonnegative matrix B. The set of all such matrices is a convex cone which plays a role in certain optimization problems. A characterization of the interior of this cone is provided.
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APA
Dür, M., & Still, G. (2008). Interior points of the completely positive cone. Electronic Journal of Linear Algebra, 17, 48–53. https://doi.org/10.13001/1081-3810.1248
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