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Tag: "Laurent, Monique" (1)

Completely Positive Semidefinite Matrices: Conic Approximations and Matrix Factorization Ranks
Completely Positive Semidefinite Matrices: Conic Approximations and Matrix Factorization Ranks
mathematicsEnglish5 sep 20171060The completely positive semidefinite cone is a new matrix cone, which consists of all the symmetric matrices (of a given size) that admit a Gram factorization by positive semidefinite matrices of any size. This cone can thus be seen as a non-commutative analogue of the classical completely positive cone, replacing factorizations by nonnegative vectors (aka diagonal psd matrices) by arbitrary ...
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