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math.OC2021
The cone of completely positive matrices
Max Pfeffer, Jose Alejandro Samper
We study the cone of completely positive (cp) matrices for the first interesting case . This is a semialgebraic set, which means that the polynomial equalities and inequliti…
math.OC2021
Riemannian thresholding methods for row-sparse and low-rank matrix recovery
Henrik Eisenmann, Felix Krahmer, Max Pfeffer +1
In this paper, we present modifications of the iterative hard thresholding (IHT) method for recovery of jointly row-sparse and low-rank matrices. In particular a Riemannian version…