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On the properties of multidimensional electrostatic oscillations of an electron plasmaстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Автор: Rozanova O.S.
- Журнал: Mathematical Methods in the Applied Sciences
- Год издания: 2023
- Издательство: John Wiley & Sons Inc.
- Местоположение издательства: United States
- DOI: 10.1002/mma.8984
- Аннотация: We consider the classical Cauchy problem for a system of equationsdescribing 3D arbitrary electrostatic oscillations of the coldplasma and introduce an iteration procedure that allows estimating the blow-up time from below.This procedure is constructive provided one succeeds in obtaining a two-sided estimate of an additional quantity depending on the solution.We show that this is possible in the case of one and two dimensions, as well as for solutions with zero vorticity. For the particular case of two-dimensional initial data with radial symmetry, refined sufficient conditions for destruction and preservation of smoothness in the first period of oscillations are obtained. Moreover, we give the example of estimating the blow-up time for the data for which results of numerics exist and discuss the roughness of our estimate.
- Добавил в систему: Розанова Ольга Сергеевна