Kamchatnov, A. M.; Pavlov, M. V. Two-photon propagation of light and the modified Liouville equation. (English. Russian original) Zbl 1453.81066 Theor. Math. Phys. 204, No. 2, 1093-1099 (2020); translation from Teor. Mat. Fiz. 204, No. 2, 297-304 (2020). MSC: 81V80 34A34 34B24 34L25 37K10 37K40 PDFBibTeX XMLCite \textit{A. M. Kamchatnov} and \textit{M. V. Pavlov}, Theor. Math. Phys. 204, No. 2, 1093--1099 (2020; Zbl 1453.81066); translation from Teor. Mat. Fiz. 204, No. 2, 297--304 (2020) Full Text: DOI
Gorev, N. D.; Elfimov, B. M.; Sharapov, A. A. Deformation quantization of framed presymplectic manifolds. (English. Russian original) Zbl 1453.81042 Theor. Math. Phys. 204, No. 2, 1079-1092 (2020); translation from Teor. Mat. Fiz. 204, No. 2, 280-296 (2020). MSC: 81S10 53D55 53D45 PDFBibTeX XMLCite \textit{N. D. Gorev} et al., Theor. Math. Phys. 204, No. 2, 1079--1092 (2020; Zbl 1453.81042); translation from Teor. Mat. Fiz. 204, No. 2, 280--296 (2020) Full Text: DOI
Khakimov, R. M.; Makhammadaliev, M. T. Uniqueness and nonuniqueness conditions for weakly periodic Gibbs measures for the hard-core model. (English. Russian original) Zbl 1454.82015 Theor. Math. Phys. 204, No. 2, 1059-1078 (2020); translation from Teor. Mat. Fiz. 204, No. 2, 258-279 (2020). MSC: 82B30 82B20 05C05 PDFBibTeX XMLCite \textit{R. M. Khakimov} and \textit{M. T. Makhammadaliev}, Theor. Math. Phys. 204, No. 2, 1059--1078 (2020; Zbl 1454.82015); translation from Teor. Mat. Fiz. 204, No. 2, 258--279 (2020) Full Text: DOI
Zhang, Yue; Luo, Shunlong Quantifying non-gaussianity via the Hellinger distance. (English. Russian original) Zbl 1453.81011 Theor. Math. Phys. 204, No. 2, 1046-1058 (2020); translation from Teor. Mat. Fiz. 204, No. 2, 242-257 (2020). MSC: 81P68 81V73 81R30 81P16 PDFBibTeX XMLCite \textit{Y. Zhang} and \textit{S. Luo}, Theor. Math. Phys. 204, No. 2, 1046--1058 (2020; Zbl 1453.81011); translation from Teor. Mat. Fiz. 204, No. 2, 242--257 (2020) Full Text: DOI
Nalimov, M. Yu.; Ovsyannikov, A. V. Convergent perturbation theory for studying phase transitions. (English. Russian original) Zbl 1453.81049 Theor. Math. Phys. 204, No. 2, 1033-1045 (2020); translation from Teor. Mat. Fiz. 204, No. 2, 226-241 (2020). MSC: 81T17 14D21 81T15 40A05 82D55 82B27 81T32 82B26 82B31 82B20 PDFBibTeX XMLCite \textit{M. Yu. Nalimov} and \textit{A. V. Ovsyannikov}, Theor. Math. Phys. 204, No. 2, 1033--1045 (2020; Zbl 1453.81049); translation from Teor. Mat. Fiz. 204, No. 2, 226--241 (2020) Full Text: DOI
Wang, W. H.; Chen, Z. L.; Song, Y.; Fan, Y. J. Optimal time evolution for pseudo-Hermitian Hamiltonians. (English. Russian original) Zbl 1453.81021 Theor. Math. Phys. 204, No. 2, 1020-1032 (2020); translation from Teor. Mat. Fiz. 204, No. 2, 211-225 (2020). MSC: 81Q05 81Q12 51F25 PDFBibTeX XMLCite \textit{W. H. Wang} et al., Theor. Math. Phys. 204, No. 2, 1020--1032 (2020; Zbl 1453.81021); translation from Teor. Mat. Fiz. 204, No. 2, 211--225 (2020) Full Text: DOI
Morozov, A. Yu. The KNTZ trick from arborescent calculus and the structure of the differential expansion. (English. Russian original) Zbl 1456.57009 Theor. Math. Phys. 204, No. 2, 993-1019 (2020); translation from Teor. Mat. Fiz. 204, No. 2, 181-210 (2020). Reviewer: Dmitry Artamonov (Moskva) MSC: 57K10 57K14 PDFBibTeX XMLCite \textit{A. Yu. Morozov}, Theor. Math. Phys. 204, No. 2, 993--1019 (2020; Zbl 1456.57009); translation from Teor. Mat. Fiz. 204, No. 2, 181--210 (2020) Full Text: DOI arXiv
Anikin, A. Yu.; Dobrokhotov, S. Yu.; Tsvetkova, A. V. Airy functions and transition between semiclassical and harmonic oscillator approximations for one-dimensional bound states. (English. Russian original) Zbl 1453.81024 Theor. Math. Phys. 204, No. 2, 984-992 (2020); translation from Teor. Mat. Fiz. 204, No. 2, 171-180 (2020). MSC: 81Q10 81Q20 35P05 35B40 33C10 PDFBibTeX XMLCite \textit{A. Yu. Anikin} et al., Theor. Math. Phys. 204, No. 2, 984--992 (2020; Zbl 1453.81024); translation from Teor. Mat. Fiz. 204, No. 2, 171--180 (2020) Full Text: DOI
Buchstaber, V. M.; Tertychnyi, S. I. Group algebras acting on the space of solutions of a special double confluent Heun equation. (English. Russian original) Zbl 1454.82051 Theor. Math. Phys. 204, No. 2, 967-983 (2020); translation from Teor. Mat. Fiz. 204, No. 2, 153-170 (2020). MSC: 82D55 81R10 34M35 PDFBibTeX XMLCite \textit{V. M. Buchstaber} and \textit{S. I. Tertychnyi}, Theor. Math. Phys. 204, No. 2, 967--983 (2020; Zbl 1454.82051); translation from Teor. Mat. Fiz. 204, No. 2, 153--170 (2020) Full Text: DOI