Weis, Stephan; Shirokov, Maksim The face generated by a point, generalized affine constraints, and quantum theory. (English) Zbl 1509.46005 J. Convex Anal. 28, No. 3, 847-870 (2021). MSC: 46A55 81P45 81P68 46A03 52A99 PDFBibTeX XMLCite \textit{S. Weis} and \textit{M. Shirokov}, J. Convex Anal. 28, No. 3, 847--870 (2021; Zbl 1509.46005) Full Text: arXiv Link
Weis, Stephan W.; Shirokov, Maxim E. Extreme points of the set of quantum states with bounded energy. (English. Russian original) Zbl 1465.81010 Russ. Math. Surv. 76, No. 1, 190-192 (2021); translation from Usp. Mat. Nauk 76, No. 1, 199-200 (2021). MSC: 81P16 52A07 47B65 47B10 PDFBibTeX XMLCite \textit{S. W. Weis} and \textit{M. E. Shirokov}, Russ. Math. Surv. 76, No. 1, 190--192 (2021; Zbl 1465.81010); translation from Usp. Mat. Nauk 76, No. 1, 199--200 (2021) Full Text: DOI arXiv