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Raphaël Widdershoven

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Preprint Sep 2026

Sparse Approximation via Polynomial Equations

An eigenvalue decomposition based method is developed that formally guarantees recovery of all sparse solutions if there is more than one and two optimization-based methods achieving favorable computational complexity are developed.

Matija Tomić, Raphaël Widdershoven, L. De Lathauwer · 0 citations

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