Uskov, Vladimir Igorevich Properties of one higher order matrix-differential operator. (Russian. English summary) Zbl 07584790 Vestn. Ross. Univ., Mat. 27, No. 138, 175-182 (2022). MSC: 35G16 PDF BibTeX XML Cite \textit{V. I. Uskov}, Vestn. Ross. Univ., Mat. 27, No. 138, 175--182 (2022; Zbl 07584790) Full Text: DOI MNR OpenURL
Rakhmelevich, I. V. Modified Bianchi equation with nonlinear right-hand side. (English. Russian original) Zbl 1481.35128 Russ. Math. 65, No. 10, 44-51 (2021); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2021, No. 10, 51-59 (2021). MSC: 35G20 35A22 35C05 PDF BibTeX XML Cite \textit{I. V. Rakhmelevich}, Russ. Math. 65, No. 10, 44--51 (2021; Zbl 1481.35128); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2021, No. 10, 51--59 (2021) Full Text: DOI OpenURL