Wavelets on manifolds: An optimized construction

Kunoth, Angela; Sahner, Jan

doi:10.1090/S0025-5718-06-01828-X

Wavelets on manifolds: An optimized construction
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by Angela Kunoth and Jan Sahner PDF

Math. Comp. 75 (2006), 1319-1349 Request permission

Abstract:

A key ingredient of the construction of biorthogonal wavelet bases for Sobolev spaces on manifolds, which is based on topological isomorphisms is the Hestenes extension operator. Here we firstly investigate whether this particular extension operator can be replaced by another extension operator. Our main theoretical result states that an important class of extension operators based on interpolating boundary values cannot be used in the construction setting required by Dahmen and Schneider. In the second part of this paper, we investigate and optimize the Hestenes extension operator. The results of the optimization process allow us to implement the construction of biorthogonal wavelets from Dahmen and Schneider. As an example, we illustrate a wavelet basis on the 2-sphere.

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