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20032023
most citedIsotropic Gaussian random fields on the sphere: Regularity, fast simulation and stochastic partial differential equations

142 citations · 696 across the 46 of their papers we have counts for

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Showing 2022Show all

9 papers · 1 filter

math.NA2022

Multilevel Domain Uncertainty Quantification in Computational Electromagnetics

Rubén Aylwin, Carlos Jerez-Hanckes, Christoph Schwab +1

We continue our study [Domain Uncertainty Quantification in Computational Electromagnetics, JUQ (2020), 8:301--341] of the numerical approximation of time-harmonic electromagnetic…

math.NA2022

Monte Carlo convergence rates for th moments in Banach spaces

Kristin Kirchner, Christoph Schwab

We formulate standard and multilevel Monte Carlo methods for the th moment of a Banach space valued random variable , interpreted as…

math.NA2022

Multiresolution kernel matrix algebra

H. Harbrecht, M. Multerer, O. Schenk +1

We propose a sparse algebra for samplet compressed kernel matrices, to enable efficient scattered data analysis. We show the compression of kernel matrices by means of samplets pro…

math.NA2022★ 11 cited

Exponential Convergence of hp FEM for the Integral Fractional Laplacian in Polygons

Markus Faustmann, Carlo Marcati, Jens Markus Melenk +1

We prove exponential convergence in the energy norm of finite element discretizations for the integral fractional diffusion operator of order subject to homogene…

math.NA2022★ 3 cited

Neural and spectral operator surrogates: unified construction and expression rate bounds

Lukas Herrmann, Christoph Schwab, Jakob Zech

Approximation rates are analyzed for deep surrogates of maps between infinite-dimensional function spaces, arising e.g. as data-to-solution maps of linear and nonlinear partial dif…

math.NA2022★ 4 cited

Exponential convergence of hp-FEM for the integral fractional Laplacian in 1D

Markus Faustmann, Carlo Marcati, Jens Markus Melenk +1

We prove weighted analytic regularity for the solution of the integral fractional Poisson problem on bounded intervals with analytic right-hand side. Based on this regularity resul…