9 citations · 11 across the 7 of their papers we have counts for
8 papers
Hybrid approach to the joint spectral radius computation
Thomas Mejstrik, Ulrich Reif
In this paper we propose a modification to the invariant polytope algorithm (ipa) using ideas of the finite expressible tree algorithm (feta) by Möller and Reif. We show that our n…
Sobolev Regularity of Isogeometric Finite Element Spaces with Degenerate Geometry Map
Ulrich Reif
We investigate Sobolev regularity of bivariate functions obtained in Isogeometric Analysis when using geometry maps that are degenerate in the sense that the first partial derivati…
Surface Patches with Rounded Corners
Benjamin Marussig, Ulrich Reif
We analyze surface patches with a corner that is rounded in the sense that the partial derivatives at that point are antiparallel. Sufficient conditions for smoothness are gi…
Estimation of a regression function on a manifold by fully connected deep neural networks
Michael Kohler, Sophie Langer, Ulrich Reif
Estimation of a regression function from independent and identically distributed data is considered. The error with integration with respect to the distribution of the predic…
Trimmed Spline Surfaces with Accurate Boundary Control
Florian Martin, Ulrich Reif
We introduce trimmed NURBS surfaces with accurate boundary control, briefly called ABC-surfaces, as a solution to the notorious problem of constructing watertight or smooth (…
Clothoid Fitting and Geometric Hermite Subdivision
Ulrich Reif, Andreas Weinmann
We consider geometric Hermite subdivision for planar curves, i.e., iteratively refining an input polygon with additional tangent or normal vector information sitting in the vertice…