## On an Integral Equation Model for Slender Bodies in Low Reynolds-Number Flows

- The interation of particular slender bodies with low Reynolds-number flows is in the limit 'slenderness to 0' described by a linear Fredholm integral equation of the second kind. The integral operator of this equation has a denumerable set of polynomial eigenfunctions whose corresponding eigenvalues are non-positive and of logarithmic growth. A theorem similiar to a classical result of Plemelj-Privalov for integral operators with Cauchy kernels is proven. In contrast to Cauchy kernel operators, the integral operator maps no Hölder space into itself. A spectral analysis of the integral operator restricted to an appropriate class of analytic functions is performed. The spectral properties of this restricted integral operator suggest a collocation-like method to solve the integral equation numerically. For this numerical scheme, convergence is proven and several computations are presented.

Author: | Thomas Götz, Andreas Unterreiter |
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URN (permanent link): | urn:nbn:de:hbz:386-kluedo-9978 |

Serie (Series number): | Berichte der Arbeitsgruppe Technomathematik (AGTM Report) (219) |

Document Type: | Preprint |

Language of publication: | English |

Year of Completion: | 1999 |

Year of Publication: | 1999 |

Publishing Institute: | Technische Universität Kaiserslautern |

Date of the Publication (Server): | 2000/02/25 |

Tag: | Collocation Method plus; Fredholm integral equation of the second kind; Polynomial Eigenfunctions; Spectral Analysis; Theorem of Plemelj-Privalov |

Faculties / Organisational entities: | Fachbereich Mathematik |

DDC-Cassification: | 5 Naturwissenschaften und Mathematik / 510 Mathematik |

Licence (German): | Standard gemäß KLUEDO-Leitlinien vor dem 27.05.2011 |