التفاصيل البيبلوغرافية
| العنوان: |
On the non-linear integral equation approaches for the boundary reconstruction in double-connected planar domains |
| المؤلفون: |
Chapko, R. S., Yaman, Olha Ivanyshyn, Kanafotskyi, T. S. |
| بيانات النشر: |
Ivan Franko National University of Lviv |
| سنة النشر: |
2016 |
| مصطلحات موضوعية: |
Double connected domains, Boundary reconstruction, Green's function, Single layer potential, Boundary integral equations, Trigonometric quadrature method, Tikhonov regularization |
| الوصف: |
We consider the reconstruction of an interior curve from the given Cauchy data of a harmonic function on the exterior boundary of the planar domain. With the help of Green's function and potential theory the non-linear boundary reconstruction problem is reduced to the system of non-linear boundary integral equations. The three iterative algorithms are developed for its numerical solution. We find the Frechet derivatives for the corresponding operators and show unique solviability of the linearized systems. Full discretization of the systems is realized by a trigonometric quadrature method. Due to the inherited ill-possedness in the obtained system of linear equations we apply the Tikhonov regularization. The numerical results show that the proposed methods give a good accuracy of reconstructions with an economical computational cost. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
English |
| تدمد: |
0868-6912 |
| Relation: |
Journal of Numerical and Applied Mathematics; Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı; https://hdl.handle.net/11147/9338; 122; 20; WOS:000395272100002 |
| الاتاحة: |
https://hdl.handle.net/11147/9338 |
| Rights: |
none |
| رقم الانضمام: |
edsbas.35E8985A |
| قاعدة البيانات: |
BASE |