Egorychev, Georgiĭ Petrovich The polarization theorem and polynomial identities for matrix functions. (Russian. English summary) Zbl 06853405 Izv. Irkutsk. Gos. Univ., Ser. Mat. 21, 77-88 (2017). MSC: 15A16 15A15 BibTeX Cite {\it G. P. Egorychev}, Izv. Irkutsk. Gos. Univ., Ser. Mat. 21, 77--88 (2017; Zbl 06853405) Full Text: Link
Novickov, Mikhail Alekseevich Sign-definiteness and reduction to full squares for the bundle of tree quadratic forms. (Russian. English summary) Zbl 1365.15032 Izv. Irkutsk. Gos. Univ., Ser. Mat. 18, 74-92 (2016). MSC: 15A63 15A21 15A45 BibTeX Cite {\it M. A. Novickov}, Izv. Irkutsk. Gos. Univ., Ser. Mat. 18, 74--92 (2016; Zbl 1365.15032) Full Text: Link
Kazakov, Aleksandr Leonidovich; Batagaeva, Tat’yana Antonovna Investigation of the stability of simple quasi-Toeplitz tridiagonal systems with unlimited dimension. (Russian. English summary) Zbl 1298.65046 Izv. Irkutsk. Gos. Univ., Ser. Mat. 6, No. 3, 25-37 (2013). MSC: 65F05 65F50 15B05 BibTeX Cite {\it A. L. Kazakov} and {\it T. A. Batagaeva}, Izv. Irkutsk. Gos. Univ., Ser. Mat. 6, No. 3, 25--37 (2013; Zbl 1298.65046)