A posteriori estimates of inverse operators for initial value problems in linear ordinary differential equations
We present constructive a posteriori estimates of inverse operators for initial value problems in linear ordinary differential equations (ODEs) on a bounded interval. Here, “constructive” indicates that we can obtain bounds of the operator norm in which all constants are explicitly given or are repr...
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| Veröffentlicht in: | Journal of computational and applied mathematics Jg. 236; H. 6; S. 1622 - 1636 |
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| Hauptverfasser: | , , |
| Format: | Journal Article |
| Sprache: | Englisch |
| Veröffentlicht: |
Elsevier B.V
15.10.2011
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| Schlagworte: | |
| ISSN: | 0377-0427, 1879-1778 |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | We present constructive a posteriori estimates of inverse operators for initial value problems in linear ordinary differential equations (ODEs) on a bounded interval. Here, “constructive” indicates that we can obtain bounds of the operator norm in which all constants are explicitly given or are represented in a numerically computable form. In general, it is difficult to estimate these inverse operators a priori. We, therefore, propose a technique for obtaining a posteriori estimates by using Galerkin approximation of inverse operators. This type of estimation will play an important role in the numerical verification of solutions for initial value problems in nonlinear ODEs as well as for parabolic initial boundary value problems. |
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| Bibliographie: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
| ISSN: | 0377-0427 1879-1778 |
| DOI: | 10.1016/j.cam.2011.09.026 |