1403/02/06
افشین بابائی

افشین بابائی

مرتبه علمی: دانشیار
ارکید: https://orcid.org/0000-0002-6980-9786
تحصیلات: دکترای تخصصی
اسکاپوس: https://www.scopus.com/authid/detail.uri?authorId=57188696707
دانشکده: دانشکده علوم ریاضی
نشانی:
تلفن: 011-35302418

مشخصات پژوهش

عنوان
Reconstructing unknown nonlinear boundary conditions in a time-fractional inverse reaction–diffusion–convection problem
نوع پژوهش
JournalPaper
کلیدواژه‌ها
Caputo’s fractional derivative, inverse problem, marching scheme, mollification, time-fractional reaction–diffusion– convection equation
سال
2018
مجله NUMERICAL METHODS FOR PARTIAL DIFFERENTIAL EQUATIONS
شناسه DOI
پژوهشگران Afshin Babaei ، ُSeddighe Banihashemi

چکیده

This paper has focused on unknown functions identification in nonlinear boundary conditions of an inverse problem of a time-fractional reaction–diffusion–convection equation. This inverse problem is generally ill-posed in the sense of stability, that is, the solution of problem does not depend continuously on the input data. Thus, a combination of the mollification regularization method with Gauss kernel and a finite difference marching scheme will be introduced to solve this problem. The generalized cross-validation choice rule is applied to find a suitable regularization parameter. The stability and convergence of the numerical method are investigated. Finally, two numerical examples are provided to test the effectiveness and validity of the proposed approach.