On an error estimate for the averaging method in a~two-frequency problem
Sbornik. Mathematics, Tome 62 (1989) no. 1, pp. 29-40
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The author obtains an unimprovable estimate of the averaging method for a two-frequency problem with analytic right-hand sides under condition $\overline A$, which means a nonzero rate of change of the frequency ratio along trajectories of the averaged system. It turns out to be of order $\varepsilon^{\frac14+\frac1{2(l+1)}}$ for initial data outside a set of measure of order $\varepsilon^{\frac12}$, where $\varepsilon$ is a small parameter of the problem and $l$ is an upper bound for the maximal multiplicity of the roots of a certain finite set of equations (it is assumed that $l>1$).
Bibliography: 8 titles.
@article{SM_1989_62_1_a1,
author = {V. E. Pronchatov},
title = {On an error estimate for the averaging method in a~two-frequency problem},
journal = {Sbornik. Mathematics},
pages = {29--40},
publisher = {mathdoc},
volume = {62},
number = {1},
year = {1989},
language = {en},
url = {http://geodesic.mathdoc.fr/item/SM_1989_62_1_a1/}
}
V. E. Pronchatov. On an error estimate for the averaging method in a~two-frequency problem. Sbornik. Mathematics, Tome 62 (1989) no. 1, pp. 29-40. http://geodesic.mathdoc.fr/item/SM_1989_62_1_a1/