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Asymptotic analysis of linear parabolic problems with singularities
V. V. Gusachenkoa, V. B. Levenshtamab a Southern Federal University, ul. Mil’chakova 8a, Rostov-on-Don, 344090, Russia
b Southern Institute of Mathematics, Vladikavkaz Scientific Center, Russian Academy of Sciences, ul. Markusa 22, Vladikavkaz, 362027, Russia
Abstract:
Asymptotic methods are used to investigate a second-order linear parabolic problem with lower order coefficients rapidly oscillating in time. The coefficient multiplying the principal stationary operator is assumed to be singular, i.e., it has a simple zero eigenvalue. Under certain additional conditions, the problem is proved to have a unique time-periodic solution and its complete asymptotic expansion is constructed and justified.
Key words:
linear parabolic problem, high-frequency time coefficients, singular limit problem, complete asymptotic expansion, algorithm for justifying asymptotics.
Received: 10.04.2014
Citation:
V. V. Gusachenko, V. B. Levenshtam, “Asymptotic analysis of linear parabolic problems with singularities”, Zh. Vychisl. Mat. Mat. Fiz., 55:1 (2015), 74–88; Comput. Math. Math. Phys., 55:1 (2015), 71–84
Linking options:
https://www.mathnet.ru/eng/zvmmf10136 https://www.mathnet.ru/eng/zvmmf/v55/i1/p74
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| Statistics & downloads: |
| Abstract page: | 570 | | Full-text PDF : | 115 | | References: | 148 | | First page: | 23 |
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