Blekherman, Grigoriy; Dey, Santanu S.; Shu, Kevin; Sun, Shengding Hyperbolic relaxation of \(k\)-locally positive semidefinite matrices. (English) Zbl 07516284 SIAM J. Optim. 32, No. 2, 470-490 (2022). MSC: 68Q25 68R10 68U05 PDFBibTeX XMLCite \textit{G. Blekherman} et al., SIAM J. Optim. 32, No. 2, 470--490 (2022; Zbl 07516284) Full Text: DOI arXiv
Blekherman, Grigoriy; Hauenstein, Jonathan; Ottem, John Christian; Ranestad, Kristian; Sturmfels, Bernd Algebraic boundaries of Hilbert’s SOS cones. (English) Zbl 1273.13043 Compos. Math. 148, No. 6, 1717-1735 (2012). Reviewer: Iustin Coandă (Bucureşti) MSC: 13J30 14J28 14P05 65H10 68W30 PDFBibTeX XMLCite \textit{G. Blekherman} et al., Compos. Math. 148, No. 6, 1717--1735 (2012; Zbl 1273.13043) Full Text: DOI arXiv
Ballinger, Brandon; Blekherman, Grigoriy; Cohn, Henry; Giansiracusa, Noah; Kelly, Elizabeth; Schürmann, Achill Experimental study of energy-minimizing point configurations on spheres. (English) Zbl 1185.68771 Exp. Math. 18, No. 3, 257-283 (2009). MSC: 68U05 PDFBibTeX XMLCite \textit{B. Ballinger} et al., Exp. Math. 18, No. 3, 257--283 (2009; Zbl 1185.68771) Full Text: DOI arXiv Euclid