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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2024.6
- 수록면
- 353 - 369 (17page)
- DOI
- 10.5666/KMJ.2024.64.2.353
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초록· 키워드
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In this study, we investigate the unknown time-dependent heat source function in inverse problems. We consider three general nonlocal conditions– two classical boundary conditions and one nonlocal over-determination condition– these genereate six different cases. The finite integration method (FIM), based on numerical integration, has been adapted to solve PDEs, and we use it to discretize the spatial domain; we use backward differences for the time variable. Since the inverse problem is ill-posed with instability, we apply regularization to reduce the instability. We use the first-order Tikhonov’s regularization together with the minimization process to solve the inverse source problem. Test examples in all six cases are presented in order to illustrate the accuracy and stability of the numerical solutions.
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