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MONOTONE DIFFERENCE SCHEMES ON NON-UNIFORM GRIDS FOR 2D QUASI-LINEAR PARABOLIC CONVECTION–DIFFUSION EQUATION

Abstract

Abstract. The present paper is devoted to the construction of monotone difference second-order schemes for local approximation on non-uniform grids in space for 2D quasi-linear parabolic convection–diffusion equation. Two-sided estimates of the difference solution are found and an important a priori estimate in a uniform norm C is proved.


About the Authors

P. P. Matus
Institute of Mathematics of the National Academy of Sciences of Belarus; John Paul II Catholic University of Lublin, Lublin, Poland
Belarus

D. Sc. (Physics and Mathematics), Professor



Le. Minh Hieu
Belarusian State University
Belarus

Postgraduate student



References

1. Samarskii A. A. Theory of difference schemes. Moscow, Nauka Publ., 1989. 616 р. (in Russian).

2. Samarskii A. A., Gulin A. A. Numerical methods. Moscow, Nauka Publ., 1989. 432 р. (in Russian).

3. Fridman A. Partial Differential Equations of Parabolic Type. N. J., Prentice Hall, 1964. 347 p.

4. Matus P. P., Vo Thi Kim Tuyen, Gaspar F. Monotone difference schemes for linear parabolic equations with mixed boundary conditions. Doklady Natsional’noi akademii nauk Belarusi = Doklady of the National Academy of Sciences of Belarus, 2014, vol. 58, no. 5, pp. 18–22 (in Russian).

5. Mazhukin V. I., Malaphei D. A., Matus P. P., Samarskii A. A. Difference schemes on irregular grids for equations of mathematical physics with variable coefficients. Computational mathematics and mathematical physics, 2001, vol. 41, no. 3, pp. 379–391.

6. Malaphei D. A. Economical monotone difference schemes for multidimensional problem of convection diffusion on nonuniform grids. Doklady Natsional’noi akademii nauk Belarusi = Doklady of the National Academy of Sciences of Belarus, 2000, vol. 44, no. 4, pp. 21–25 (in Russian).

7. Matus P. P., Hieu L. M., Vulkov L. G. Maximum principle for finite-difference schemes with non sigh-constant input data. Doklady Natsional’noi akademii nauk Belarusi = Doklady of the National Academy of Sciences of Belarus, 2015, vol. 59, no. 5, pp. 13–17 (in Russian).

8. Samarskii A., Vabishchevich P., Matus P. Difference schemes with operator factors. Boston, Dordrecht, London, Kluwer Academic Publishers, 2002. 384 p. doi.org/10.1007/978-94-015-9874-3


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ISSN 1561-8323 (Print)
ISSN 2524-2431 (Online)