Neretin, Yury A. On the group of spheromorphisms of a homogeneous non-locally finite tree. (English. Russian original) Zbl 1498.20065 Izv. Math. 84, No. 6, 1161-1191 (2020); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 84, No. 6, 131-164 (2020). MSC: 20E08 20F65 22D10 05E16 PDFBibTeX XMLCite \textit{Y. A. Neretin}, Izv. Math. 84, No. 6, 1161--1191 (2020; Zbl 1498.20065); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 84, No. 6, 131--164 (2020) Full Text: DOI arXiv
Correction to: “Some trigonometric polynomials with extremely small uniform norm and their applications”. (English. Russian original) Zbl 1472.42001 Izv. Math. 84, No. 6, 1251 (2020); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 84, No. 6, 224 (2020). MSC: 42A05 46E35 PDFBibTeX XMLCite Izv. Math. 84, No. 6, 1251 (2020; Zbl 1472.42001); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 84, No. 6, 224 (2020) Full Text: DOI
Gorbatsevich, V. V. Letter to the editors. (English. Russian original) Zbl 1456.30090 Izv. Math. 84, No. 6, 1250 (2020); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 84, No. 6, 223 (2020). MSC: 30G35 53C15 57T15 PDFBibTeX XMLCite \textit{V. V. Gorbatsevich}, Izv. Math. 84, No. 6, 1250 (2020; Zbl 1456.30090); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 84, No. 6, 223 (2020) Full Text: DOI
Trynin, A. Yu. On the uniform approximation of functions of bounded variation by Lagrange interpolation polynomials with a matrix \({\mathcal L}_n^{(\alpha_n,\beta_n)}\) of Jacobi nodes. (English. Russian original) Zbl 1466.41002 Izv. Math. 84, No. 6, 1224-1249 (2020); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 84, No. 6, 197-222 (2020). Reviewer: Antonio López-Carmona (Granada) MSC: 41A05 PDFBibTeX XMLCite \textit{A. Yu. Trynin}, Izv. Math. 84, No. 6, 1224--1249 (2020; Zbl 1466.41002); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 84, No. 6, 197--222 (2020) Full Text: DOI
Tolstonogov, A. A. Bogolyubov’s theorem for a controlled system related to a variational inequality. (English. Russian original) Zbl 1456.49015 Izv. Math. 84, No. 6, 1192-1223 (2020); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 84, No. 6, 165-196 (2020). MSC: 49J45 49J21 93C30 37N35 PDFBibTeX XMLCite \textit{A. A. Tolstonogov}, Izv. Math. 84, No. 6, 1192--1223 (2020; Zbl 1456.49015); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 84, No. 6, 165--196 (2020) Full Text: DOI
Nazarov, S. A. Threshold resonances and virtual levels in the spectrum of cylindrical and periodic waveguides. (English. Russian original) Zbl 1458.35031 Izv. Math. 84, No. 6, 1105-1160 (2020); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 84, No. 6, 73-130 (2020). MSC: 35B25 35P05 35Q60 47A53 78A50 82D77 PDFBibTeX XMLCite \textit{S. A. Nazarov}, Izv. Math. 84, No. 6, 1105--1160 (2020; Zbl 1458.35031); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 84, No. 6, 73--130 (2020) Full Text: DOI
Kon’kov, A. A. Geometric estimates of solutions of quasilinear elliptic inequalities. (English. Russian original) Zbl 1459.35191 Izv. Math. 84, No. 6, 1056-1104 (2020); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 84, No. 6, 23-72 (2020). MSC: 35J62 35A23 35B65 PDFBibTeX XMLCite \textit{A. A. Kon'kov}, Izv. Math. 84, No. 6, 1056--1104 (2020; Zbl 1459.35191); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 84, No. 6, 23--72 (2020) Full Text: DOI
Bykov, V. V. Complete description of the Lyapunov spectra of continuous families of linear differential systems with unbounded coefficients. (English. Russian original) Zbl 1506.34070 Izv. Math. 84, No. 6, 1037-1055 (2020); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 84, No. 6, 3-22 (2020). MSC: 34D08 34A30 37C60 34D10 PDFBibTeX XMLCite \textit{V. V. Bykov}, Izv. Math. 84, No. 6, 1037--1055 (2020; Zbl 1506.34070); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 84, No. 6, 3--22 (2020) Full Text: DOI