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math.NA2026
Optimal compression of kernel matrices by interpolets with application to high-dimensional approximation
Helmut Harbrecht, Lucio Antonio Rosi
We consider the compression of kernel matrices on the unit interval by interpolets that have sufficiently many vanishing moments. We define a compression rule which discard…
math.NA2026
Simulation of Gaussian random fields on surfaces using the isogeometric finite element method
Helmut Harbrecht, Florian Sonderegger, Remo von Rickenbach
We are concerned with the fast simulation of random fields on closed surfaces in which are generated by the (Whittle-) Matérn class of covariance functions. To this…