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A shock layer arising as the source term collapses in the p(x)-Laplacian equation Научная публикация

Журнал Problemy Analiza
ISSN: 2306-3424
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 Antontsev S.N. 1,2 , Kuznetsov I.V. 2,3 , Sazhenkov S.A. 2,3
Организации
1 CMAF-CIO, University of Lisbon Campo Grande 1749-016, Lisbon, Portugal
2 Lavrentyev Institute of Hydrodynamics SB RAS
3 Novosibirsk State University

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
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
Цитирование в БД:
БД Цитирований
Scopus 6
OpenAlex 6
РИНЦ 8
Web of science 6
Альметрики: