Media type: E-Article Title: A Fresh Variational-Analysis Look at the Positive Semidefinite Matrices World Contributor: Hiriart-Urruty, Jean-Baptiste; Malick, Jérôme Published: Springer Science and Business Media LLC, 2012 Published in: Journal of Optimization Theory and Applications, 153 (2012) 3, Seite 551-577 Language: English DOI: 10.1007/s10957-011-9980-6 ISSN: 0022-3239; 1573-2878 Origination: Footnote: