Bazhenov, I. I. Extreme points of the range of a Lyapunov vector measure. (Russian. English summary) Zbl 1014.28012 Vestn. Syktyvkar. Univ., Ser. 1, Mat. Mekh. Inform. 2, 5-12 (1996). MSC: 28B05 46G10 49J30 PDF BibTeX XML Cite \textit{I. I. Bazhenov}, Vestn. Syktyvkar. Univ., Ser. 1, Mat. Mekh. Inform. 2, 5--12 (1996; Zbl 1014.28012) OpenURL
Zinchenko, I. L. On a classical problem of the calculus of variations. (Russian. English summary) Zbl 1056.49500 Vestn. Syktyvkar. Univ., Ser. 1, Mat. Mekh. Inform. 2, 255-256 (1996). MSC: 49J05 PDF BibTeX XML Cite \textit{I. L. Zinchenko}, Vestn. Syktyvkar. Univ., Ser. 1, Mat. Mekh. Inform. 2, 255--256 (1996; Zbl 1056.49500) OpenURL
Kirushev, V. A. A quadratic variational problem with the nonnegativity condition. (Russian. English summary) Zbl 1056.49505 Vestn. Syktyvkar. Univ., Ser. 1, Mat. Mekh. Inform. 2, 143-158 (1996). MSC: 49K15 PDF BibTeX XML Cite \textit{V. A. Kirushev}, Vestn. Syktyvkar. Univ., Ser. 1, Mat. Mekh. Inform. 2, 143--158 (1996; Zbl 1056.49505) OpenURL