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math.ST2026
User-friendly approximation theory for statistical regression
Felix Benning
The error of regression using noisy function values naturally decomposes into an approximation error from the choice of model space and stochastic error from the noise on the obser…
math.ST2025
Schoenberg characterization of continuous non-stationary isotropic positive definite kernels
Felix Benning, Max David Schölpple
We characterize the continuous isotropic positive definite kernels on , where isotropy refers to invariance under the orthogonal group but not necessarily stat…