Lychagin, V. V. On thermodynamics of multicomponent systems. (English) Zbl 07792259 Lobachevskii J. Math. 44, No. 9, 3952-3962 (2023). MSC: 80Axx 76Nxx 35Qxx PDFBibTeX XMLCite \textit{V. V. Lychagin}, Lobachevskii J. Math. 44, No. 9, 3952--3962 (2023; Zbl 07792259) Full Text: DOI
Duyunova, A.; Lychagin, V.; Tychkov, S. Thermodynamics of one-dimensional flows. (English) Zbl 07792254 Lobachevskii J. Math. 44, No. 9, 3914-3918 (2023). MSC: 35Q35 35Q79 80A05 76N15 74F10 74M15 53D05 53D10 35R01 PDFBibTeX XMLCite \textit{A. Duyunova} et al., Lobachevskii J. Math. 44, No. 9, 3914--3918 (2023; Zbl 07792254) Full Text: DOI
Lychagin, V. V.; Yumaguzhin, V. A. Natural differential invariants and equivalence of third order nonlinear differential operators. (English) Zbl 1523.35018 Lobachevskii J. Math. 44, No. 4, 1416-1425 (2023). MSC: 35B06 35G20 47F05 53A55 58J70 PDFBibTeX XMLCite \textit{V. V. Lychagin} and \textit{V. A. Yumaguzhin}, Lobachevskii J. Math. 44, No. 4, 1416--1425 (2023; Zbl 1523.35018) Full Text: DOI arXiv
Lychagin, V. V. Finite-dimensional dynamics in nonlinear heat transfer. (English) Zbl 1522.35433 Lobachevskii J. Math. 44, No. 4, 1407-1415 (2023). MSC: 35Q49 35K05 34M55 35B41 PDFBibTeX XMLCite \textit{V. V. Lychagin}, Lobachevskii J. Math. 44, No. 4, 1407--1415 (2023; Zbl 1522.35433) Full Text: DOI
Lychagin, V. V. On Darcy-Forchheimer flows in porous media. (English) Zbl 1509.35234 Lobachevskii J. Math. 43, No. 10, 2793-2796 (2022). MSC: 35Q35 76S05 76N15 35B40 PDFBibTeX XMLCite \textit{V. V. Lychagin}, Lobachevskii J. Math. 43, No. 10, 2793--2796 (2022; Zbl 1509.35234) Full Text: DOI
Lychagin, V. V.; Yumaguzhin, V. A. Invariants of forth order linear differential operators. (English) Zbl 1473.35107 Lobachevskii J. Math. 41, No. 12, 2473-2481 (2020). Reviewer: Boris S. Kruglikov (Tromsø) MSC: 35G05 53A55 58A20 PDFBibTeX XMLCite \textit{V. V. Lychagin} and \textit{V. A. Yumaguzhin}, Lobachevskii J. Math. 41, No. 12, 2473--2481 (2020; Zbl 1473.35107) Full Text: DOI arXiv
Lychagin, V. V.; Roop, M. D. Shock waves in Euler flows of gases. (English) Zbl 1458.35316 Lobachevskii J. Math. 41, No. 12, 2466-2472 (2020). MSC: 35Q31 76L05 76N15 35L65 PDFBibTeX XMLCite \textit{V. V. Lychagin} and \textit{M. D. Roop}, Lobachevskii J. Math. 41, No. 12, 2466--2472 (2020; Zbl 1458.35316) Full Text: DOI arXiv
Krasil’shchik, I. S.; Lychagin, V. V. Geometric study of gas behavior in a one-dimensional nozzle (the case of the van der Waals gas). (English) Zbl 1458.35313 Lobachevskii J. Math. 41, No. 12, 2458-2465 (2020). MSC: 35Q31 76N15 76M60 PDFBibTeX XMLCite \textit{I. S. Krasil'shchik} and \textit{V. V. Lychagin}, Lobachevskii J. Math. 41, No. 12, 2458--2465 (2020; Zbl 1458.35313) Full Text: DOI arXiv
Duyunova, A.; Lychagin, V.; Tychkov, S. Symmetries and differential invariants for inviscid flows on a curve. (English) Zbl 1475.76071 Lobachevskii J. Math. 41, No. 12, 2435-2447 (2020). Reviewer: Daniel Beltiţă (Bucureşti) MSC: 76M60 76B03 53Z05 22E70 PDFBibTeX XMLCite \textit{A. Duyunova} et al., Lobachevskii J. Math. 41, No. 12, 2435--2447 (2020; Zbl 1475.76071) Full Text: DOI arXiv
Bibikov, P. V.; Lychagin, V. V. Invariants of symbols of the linear differential operators. (English) Zbl 1458.35014 Lobachevskii J. Math. 41, No. 12, 2427-2434 (2020). MSC: 35A30 35G05 PDFBibTeX XMLCite \textit{P. V. Bibikov} and \textit{V. V. Lychagin}, Lobachevskii J. Math. 41, No. 12, 2427--2434 (2020; Zbl 1458.35014) Full Text: DOI arXiv
Lychagin, V. V.; Roop, M. D. Critical phenomena in filtration processes of real gases. (English) Zbl 1453.80004 Lobachevskii J. Math. 41, No. 3, 382-399 (2020). Reviewer: Ilya A. Chernov (Petrozavodsk) MSC: 80A22 76S05 76N15 35Q79 PDFBibTeX XMLCite \textit{V. V. Lychagin} and \textit{M. D. Roop}, Lobachevskii J. Math. 41, No. 3, 382--399 (2020; Zbl 1453.80004) Full Text: DOI arXiv
Duyunova, A. A.; Lychagin, V. V.; Tychkov, S. N. Differential invariants for spherical flows of inviscid fluid. (English) Zbl 1397.37094 Lobachevskii J. Math. 39, No. 5, 655-663 (2018). MSC: 37N10 35Q35 76N10 35A30 53A55 80A10 PDFBibTeX XMLCite \textit{A. A. Duyunova} et al., Lobachevskii J. Math. 39, No. 5, 655--663 (2018; Zbl 1397.37094) Full Text: DOI
Duyunova, A.; Lychagin, Valentin; Tychkov, Sergey Differential invariants for plane flows of viscid fluids. (English) Zbl 1373.37184 Lobachevskii J. Math. 38, No. 4, 644-652 (2017). MSC: 37N10 35Q35 35Q30 76M60 PDFBibTeX XMLCite \textit{A. Duyunova} et al., Lobachevskii J. Math. 38, No. 4, 644--652 (2017; Zbl 1373.37184) Full Text: DOI
Bibikov, P.; Lychagin, Valentin Differential contra algebraic invariants: applications to classical algebraic problems. (English) Zbl 1339.22011 Lobachevskii J. Math. 37, No. 1, 36-49 (2016). Reviewer: Mircea Crâşmăreanu (Iaşi) MSC: 22F05 53A55 58A20 PDFBibTeX XMLCite \textit{P. Bibikov} and \textit{V. Lychagin}, Lobachevskii J. Math. 37, No. 1, 36--49 (2016; Zbl 1339.22011) Full Text: DOI
Lychagin, V.; Yumaguzhin, V. Invariants in relativity theory. (English) Zbl 1332.83034 Lobachevskii J. Math. 36, No. 3, 298-312 (2015). MSC: 83C22 53Z05 83C05 PDFBibTeX XMLCite \textit{V. Lychagin} and \textit{V. Yumaguzhin}, Lobachevskii J. Math. 36, No. 3, 298--312 (2015; Zbl 1332.83034) Full Text: DOI
Konovenko, N.; Lychagin, V. Lobachevskian geometry in image recognition. (English) Zbl 1332.53017 Lobachevskii J. Math. 36, No. 3, 286-291 (2015). MSC: 53A30 68U10 94A08 PDFBibTeX XMLCite \textit{N. Konovenko} and \textit{V. Lychagin}, Lobachevskii J. Math. 36, No. 3, 286--291 (2015; Zbl 1332.53017) Full Text: DOI
Bibikov, P.; Lychagin, V. \(\mathrm{GL}_2(\mathbb C)\)-orbits of binary rational forms. (English) Zbl 1258.13011 Lobachevskii J. Math. 32, No. 1, 95-102 (2011). Reviewer: Ivo M. Michailov (Shumen) MSC: 13A50 58A20 PDFBibTeX XMLCite \textit{P. Bibikov} and \textit{V. Lychagin}, Lobachevskii J. Math. 32, No. 1, 95--102 (2011; Zbl 1258.13011) Full Text: DOI
Lychagin, V.; Yumaguzhin, V. Minkowski metrics on solutions of the Khokhlov-Zabolotskaya equation. (English) Zbl 1225.35011 Lobachevskii J. Math. 30, No. 4, 333-336 (2009). MSC: 35A30 35A21 53B30 53C50 35C05 58A20 PDFBibTeX XMLCite \textit{V. Lychagin} and \textit{V. Yumaguzhin}, Lobachevskii J. Math. 30, No. 4, 333--336 (2009; Zbl 1225.35011) Full Text: DOI
Lychagin, V.; Yumaguzhin, V. On geometric structures of 2-dimensional gas dynamics equations. (English) Zbl 1225.35010 Lobachevskii J. Math. 30, No. 4, 327-332 (2009). MSC: 35A30 35L40 53A55 53C15 58A20 58A32 76N15 35L60 PDFBibTeX XMLCite \textit{V. Lychagin} and \textit{V. Yumaguzhin}, Lobachevskii J. Math. 30, No. 4, 327--332 (2009; Zbl 1225.35010) Full Text: DOI
Jakobsen, Per K.; Lychagin, Valentin V. Maximum entropy wave functions. (English) Zbl 1111.82025 Lobachevskii J. Math. 23, 29-56 (2006). MSC: 82B99 81Q99 81P15 94A17 PDFBibTeX XMLCite \textit{P. K. Jakobsen} and \textit{V. V. Lychagin}, Lobachevskii J. Math. 23, 29--56 (2006; Zbl 1111.82025) Full Text: EuDML EMIS
Jakobsen, Per K.; Lychagin, V. V. Universal semigroups. (English) Zbl 1091.18001 Lobachevskii J. Math. 18, 107-125 (2005). Reviewer: Jan Kubarski (Łódź) MSC: 18D10 16S36 20M10 32A65 PDFBibTeX XMLCite \textit{P. K. Jakobsen} and \textit{V. V. Lychagin}, Lobachevskii J. Math. 18, 107--125 (2005; Zbl 1091.18001) Full Text: EuDML EMIS
Jakobsen, Per K.; Lychagin, Valentin V. Quantizations in a category of relations. (English) Zbl 1069.18004 Lobachevskii J. Math. 17, 61-148 (2005). Reviewer: Hirokazu Nishimura (Tsukuba) MSC: 18B10 18A99 18D10 18C10 PDFBibTeX XMLCite \textit{P. K. Jakobsen} and \textit{V. V. Lychagin}, Lobachevskii J. Math. 17, 61--148 (2005; Zbl 1069.18004) Full Text: EuDML EMIS
Jakobsen, Per K.; Lychagin, Valentin V. Operator valued probability theory. (English) Zbl 1057.60008 Lobachevskii J. Math. 16, 17-56 (2004). Reviewer: Roman Frič (Košice) MSC: 60A10 46N30 18D10 PDFBibTeX XMLCite \textit{P. K. Jakobsen} and \textit{V. V. Lychagin}, Lobachevskii J. Math. 16, 17--56 (2004; Zbl 1057.60008) Full Text: EuDML EMIS