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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

  1. Technische Universität Dresden

    Affiliation as printed

    Institut für Wissenschaftliches Rechnen, Technische Universität Dresden , D-01062 Dresden , Germany

  2. RWTH Aachen University

    Affiliation as printed

    Institut für Geometrie und Praktische Mathematik, RWTH Aachen University , D-52056 Aachen , Germany

  3. Technische Universität Dresden

    Affiliation as printed

    Institut für Wissenschaftliches Rechnen, Technische Universität Dresden , D-01062 Dresden , Germany

  4. Simon Praetorius corresponding

    Technische Universität Dresden

    Affiliation as printed

    Institut für Wissenschaftliches Rechnen, Technische Universität Dresden , D-01062 Dresden , Germany

  5. RWTH Aachen University

    Affiliation as printed

    Institut für Geometrie und Praktische Mathematik, RWTH Aachen University , D-52056 Aachen , Germany

  6. Technische Universität Dresden

    Affiliation as printed

    Institut für Wissenschaftliches Rechnen, Technische Universität Dresden , D-01062 Dresden , Germany

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References 45