On Monotonic Pattern in Periodic Boundary Solutions of Cylindrical and Spherical Kortweg–De Vries–Burgers Equations

نویسندگان

چکیده

We studied, for the Kortweg–de Vries–Burgers equations on cylindrical and spherical waves, development of a regular profile starting from an equilibrium under periodic perturbation at boundary. The vicinity looks like periodical chain shock fronts with decreasing amplitudes. Further on, become decaying smooth quasi-periodic oscillations. After oscillations cease, wave develops as monotonic convex wave, terminated by head constant height equal velocity. This velocity depends integral characteristics boundary condition spatial dimensions. In this paper explicit asymptotic formulas part, median oscillating part are found.

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ژورنال

عنوان ژورنال: Symmetry

سال: 2021

ISSN: ['0865-4824', '2226-1877']

DOI: https://doi.org/10.3390/sym13020220