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math.NA2023
On factorization of rank-one auto-correlation matrix polynomials
Konstantin Usevich, Julien Flamant, Marianne Clausel +1
This article characterizes the rank-one factorization of auto-correlation matrix polynomials. We establish a sufficient and necessary uniqueness condition for uniqueness of the fac…
math.NA2014★ 48 cited
Homotopy based algorithms for -regularized least-squares
Charles Soussen, Jérôme Idier, Junbo Duan +1
Sparse signal restoration is usually formulated as the minimization of a quadratic cost function , where A is a dictionary and x is an unknown sparse vector. It is we…