2 papers
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…
math.FA2023
Which Spaces can be Embedded in Reproducing Kernel Hilbert Spaces?
Max Schölpple, Ingo Steinwart
Given a Banach space consisting of functions, we ask whether there exists a reproducing kernel Hilbert space with bounded kernel such that . More generally, we…