Abstract
We study the asymptotic profile of the solutions of the Burgers equation on a finite interval with a periodic perturbation on the boundary. The equation describes a dissipative medium, and the initial constant profile therefore passes into a wave with a decreasing amplitude. In the low-viscosity case, the asymptotic profile looks like a sawtooth wave (with periodic breaks of the derivative), similar to the known Fay solution on the half-line, but it has some new properties.
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Prepared from an English manuscript submitted by the author; for the Russian version, see Teoreticheskaya i Matematicheskaya Fizika, Vol. 188, No. 3, pp. 470–476, September, 2016.
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Samokhin, A.V. The Burgers equation with periodic boundary conditions on an interval. Theor Math Phys 188, 1371–1376 (2016). https://doi.org/10.1134/S0040577916090087
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DOI: https://doi.org/10.1134/S0040577916090087