We propose a method for the construction of exact solutions to the nonlinear heat equation based on the classical method of separation of variables and its generalization. We consider substitutions, which reduce the nonlinear heat equation to a system of two ordinary differential equations and construct the classes of exact solutions by the method of generalized separation of variables.
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References
A. D. Polyanin and V. F. Zaitsev, Handbook of Nonlinear Partial Differential Equations, Chapman & Hall/CRC, Boca Raton (2004).
L. V. Ovsyannikov, “Group properties of equations of nonlinear heat conduction,” Dokl. Akad. Nauk SSSR, 125, No. 3, 492–495 (1959).
G. R. Philip, “General method of exact solutions of the concentration-dependent diffusion equation,” Austral. J. Phys., 13, No. 1, 13–20 (1960).
V. A. Dorodnitsyn, Group Properties and Invariant Solutions of Nonlinear Heat Equations with Source or Sink [in Russian], Preprint No. 57, Institute of Applied Mathematics, Academy of Sciences of USSR, Moscow (1979).
V. A. Dorodnitsyn, “On the invariant solutions of the nonlinear heat equation with source,” Zh. Vychisl. Mat. Mat. Fiz., 22, No. 6, 1393–1400 (1982).
V. A. Dorodnitsyn and S. R. Svirshchevskii, On the Lie–B¨aclund Groups Admitted by the Heat Equation with Source [in Russian], Preprint No. 101, Institute of Applied Mathematics, Academy of Sciences of USSR, Moscow (1983).
V. A. Galaktionov, V. A. Dorodnitsyn, G. G. Elenin, S. P. Kurdyumov, and A. A. Samarskii, “Quasilinear heat equation with source: peaking, localization, symmetry, new solutions, asymptotics, and structures,” in: VINITI Series in Contemporary Problems in Mathematics [in Russian], 28, VINITI, Moscow (1986), pp. 95–206.
N. H. Ibragimov (editor), CRC Handbook of the Group to Differential Equations, Vol. 1. Symmetries, Exact Solutions, and Conservation Laws, CRC Press, Boca Raton (1994).
M. Bertsch, R. Kersner, and L. A. Peletier, “Positivity versus localization in generate diffusion equations,” Nonlin. Anal.: Theory, Meth. Appl., 9, No. 9, 987–1008 (1985).
V. A. Galaktionov and S. A. Posashkov, “On new exact solutions of parabolic equations with quadratic nonlinearities,” Zh. Vychisl. Mat. Mat. Fiz., 29, No. 4, 497–506 (1989).
V. A. Galaktionov, “Invariant subspaces and new explicit solutions to evolution equations with quadratic nonlinearities,” Proc. Roy. Soc. Edinburgh. Sect. A, 125, No. 2, 225–448 (1995).
V. A. Galaktionov, S. A. Posashkov, and S. R. Svirshchevskii, “Generalized separation of variables for differential equations with polynomial right-hand sides,” Differents. Uravn., 31, No. 2, 253–261 (1995).
V. A. Galaktionov and S. R. Svirshchevskii, Exact Solutions and Invariant Subspaces of Nonlinear Partial Differential Equations in Mechanics and Physics, Chapman & Hall/CRC Appl. Math. Nonlinear Sci. Ser., Boca Raton (2007).
R. Kersner, “On some properties of weak solutions of quasilinear degenerate parabolic equations,” Acta Math. Acad. Sci. Hung., 32, No. 3-4, 301–330 (1978).
A. G. Nikitin and T. A. Barannyk, “Solitary wave and other solutions for nonlinear heat equations,” Centr. Europ. Sci. J., 2, No. 5, 840–858 (2004).
A. F. Barannyk, T. A. Barannyk, and I. I. Yuryk, “Separation of variables for nonlinear equations of hyperbolic and Korteweg–de Vries type,” Rep. Math. Phys., 68, No. 1, 92–105 (2011).
A. F. Barannyk, T. A. Barannyk, and I. I. Yuryk, “Generalized separation of variables for nonlinear equation utt = F(u)uxx + aF'(u)\( {U}_x^2 \),” Rep. Math. Phys., 71, No. 1, 1–13 (2013).
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Translated from Ukrains’kyi Matematychnyi Zhurnal, Vol. 71, No. 11, pp. 1443–1454, November, 2019.
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Barannyk, A.F., Barannyk, T.A. & Yuryk, I.I. A Method for the Construction of Exact Solutions to the Nonlinear Heat Equation Ut = (F(U)Ux)X + G(U)Ux + H(U). Ukr Math J 71, 1651–1663 (2020). https://doi.org/10.1007/s11253-020-01739-4
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DOI: https://doi.org/10.1007/s11253-020-01739-4