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Information-based complexity applied to numerical transport theory
dc.contributor.advisor | Nelson, Paul | |
dc.creator | Yu, Fan | |
dc.date.accessioned | 2020-09-02T20:12:43Z | |
dc.date.available | 2020-09-02T20:12:43Z | |
dc.date.issued | 1992 | |
dc.identifier.uri | https://hdl.handle.net/1969.1/DISSERTATIONS-1348974 | |
dc.description | Typescript (photocopy). | en |
dc.description.abstract | In this work, we apply a recently developed theory, information-based complexity, to numerical transport theory. Two classes of information, cell-average information and point-evaluation information, and two popular algorithms, the step-characteristics and diamond-differences, are discussed in view of information-based complexity, for a one-dimensional model problem. For this problem, optimal errors and algorithms for these two types of information are presented, and we also show that the diamond-difference method always has a smaller worst-case error than the step-characteristic method, when both use the same cell-average information. For a model problem in two-dimensional transport, we obtain the radius of the cell-average information, which is the optimal (worst-case) error. The corresponding central algorithm that possesses this optimal error is developed. Further, we theoretically and numerically compare four algorithms, the step-characteristic, diamond-difference, (C, C) nodal transport, and corner-balance algorithms, for a single cell. A number of figures and a table are presented for those comparisons. Such results allow the best choice of algorithm to solve the model problem, depending on the angular variables (μ, η) and cell width h. | en |
dc.format.extent | vii, 88 leaves | en |
dc.format.medium | electronic | en |
dc.format.mimetype | application/pdf | |
dc.language.iso | eng | |
dc.rights | This thesis was part of a retrospective digitization project authorized by the Texas A&M University Libraries. Copyright remains vested with the author(s). It is the user's responsibility to secure permission from the copyright holder(s) for re-use of the work beyond the provision of Fair Use. | en |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | |
dc.subject | Major mathematics | en |
dc.subject.classification | 1992 Dissertation Y94 | |
dc.subject.lcsh | Neutron transport theory | en |
dc.subject.lcsh | Numerical analysis | en |
dc.subject.lcsh | Computational complexity | en |
dc.title | Information-based complexity applied to numerical transport theory | en |
dc.type | Thesis | en |
thesis.degree.grantor | Texas A&M University | en |
thesis.degree.name | Doctor of Philosophy | en |
thesis.degree.name | Ph. D | en |
dc.contributor.committeeMember | Allen, G. Don | |
dc.contributor.committeeMember | Chen, Jianer | |
dc.contributor.committeeMember | Larson, David | |
dc.contributor.committeeMember | Pilant, Michael | |
dc.type.genre | dissertations | en |
dc.type.material | text | en |
dc.format.digitalOrigin | reformatted digital | en |
dc.publisher.digital | Texas A&M University. Libraries | |
dc.identifier.oclc | 28870847 |
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