Media type: E-Article Title: Second-order orthant-based methods with enriched Hessian information for sparse $$\ell _1$$ ℓ 1 -optimization Contributor: De Los Reyes, J. C.; Loayza, E.; Merino, P. imprint: Springer Science and Business Media LLC, 2017 Published in: Computational Optimization and Applications Language: English DOI: 10.1007/s10589-017-9891-z ISSN: 0926-6003; 1573-2894 Keywords: Applied Mathematics ; Computational Mathematics ; Control and Optimization Origination: Footnote: