A shock layer arising as the source term collapses in the p(x)-Laplacian equation Научная публикация
Журнал |
Problemy Analiza
ISSN: 2306-3424 |
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Вых. Данные | Год: 2020, Том: 27, Номер: 3, Страницы: 31-53 Страниц : 23 DOI: 10.15393/j3.art.2020.8990 | ||||||
Ключевые слова | energy solution; non-instantaneous impulse; nonstandard growth; parabolic equation; shock layer; variable non-linearity | ||||||
Авторы |
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Организации |
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Реферат:
The Cauchy--Dirichlet problem for the p(x)-Laplacian equation with a regular finite nonlinear minor term is studied. The minor term depends on a small parameter ε>0 and, as ε→0, converges weakly* to the expression incorporating the Dirac delta function, which models a shock (impulsive) loading. We establish that the shock layer, associated with the Dirac delta function, is formed as ε→0, and that the family of weak solutions of the original problem converges to a
solution of a two-scale microscopic-macroscopic model. This model consists of two equations and the set of initial and boundary conditions, so that the `outer' macroscopic solution beyond the shock layer is governed by the usual
homogeneous p(x)-Laplacian equation, while the shock layer solution is defined on the microscopic level and obeys the ordinary differential equation derived from the microstructure of the shock layer profile.
Библиографическая ссылка:
Antontsev S.N.
, Kuznetsov I.V.
, Sazhenkov S.A.
A shock layer arising as the source term collapses in the p(x)-Laplacian equation
Problemy Analiza. 2020. V.27. N3. P.31-53. DOI: 10.15393/j3.art.2020.8990 WOS Scopus РИНЦ OpenAlex
A shock layer arising as the source term collapses in the p(x)-Laplacian equation
Problemy Analiza. 2020. V.27. N3. P.31-53. DOI: 10.15393/j3.art.2020.8990 WOS Scopus РИНЦ OpenAlex
Даты:
Поступила в редакцию: | 25 авг. 2020 г. |
Принята к публикации: | 28 окт. 2020 г. |
Опубликована online: | 3 нояб. 2022 г. |
Идентификаторы БД:
Web of science: | WOS:000590954400003 |
Scopus: | 2-s2.0-85101496368 |
РИНЦ: | 44283108 |
OpenAlex: | W3109740896 |