3 papers
math.NA2024
Exact discretization, tight frames and recovery via D-optimal designs
Felix Bartel, Lutz Kämmerer, Kateryna Pozharska +2
-optimal designs originate in statistics literature as an approach for optimal experimental designs. In numerical analysis points and weights resulting from maximal determinants…
math.NA2023
Efficient recovery of non-periodic multivariate functions from few scattered samples
Felix Bartel, Kai Lüttgen, Nicolas Nagel +1
It has been observed by several authors that well-known periodization strategies like tent or Chebychev transforms lead to remarkable results for the recovery of multivariate funct…
math.NA2023
Nonlinear Approximation with Subsampled Rank-1 Lattices
Felix Bartel, Fabian Taubert
In this paper we approximate high-dimensional functions by sparse trigonometric polynomials based on function evaluations. Recently it was shown th…