Diffusion of tangential tensor fields: numerical issues and influence of geometric properties
Journal of Numerical Mathematics, vol. 0
Abstract
Abstract We study the diffusion of tangential tensor-valued data on curved surfaces. For this purpose, several finite-element-based numerical methods are collected and used to solve a tangential surfacen-tensor heat flow problem. These methods differ with respect to the surface representation used, the geometric information required, and the treatment of the tangentiality condition. We emphasize the importance of geometric properties and their increasing influence as the tensorial degree changes fromn= 0 ton≥ 1. A specific example is presented that illustrates how curvature drastically affects the behavior of the solution.
Authors 6
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Technische Universität Dresden
Affiliation as printed
Institut für Wissenschaftliches Rechnen, Technische Universität Dresden , D-01062 Dresden , Germany
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Affiliation as printed
Institut für Geometrie und Praktische Mathematik, RWTH Aachen University , D-52056 Aachen , Germany
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Technische Universität Dresden
Affiliation as printed
Institut für Wissenschaftliches Rechnen, Technische Universität Dresden , D-01062 Dresden , Germany
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Simon Praetorius corresponding
Technische Universität Dresden
Affiliation as printed
Institut für Wissenschaftliches Rechnen, Technische Universität Dresden , D-01062 Dresden , Germany
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Affiliation as printed
Institut für Geometrie und Praktische Mathematik, RWTH Aachen University , D-52056 Aachen , Germany
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Technische Universität Dresden
Affiliation as printed
Institut für Wissenschaftliches Rechnen, Technische Universität Dresden , D-01062 Dresden , Germany
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