5 citations · 6 across the 3 of their papers we have counts for
3 papers
math.AP2011★ 1 cited
Quasilinear elliptic and parabolic Robin problems on Lipschitz domains
Robin Nittka
We prove Hölder continuity up to the boundary for solutions of quasi-linear degenerate elliptic problems in divergence form, not necessarily of variational type, on Lipschitz domai…
math.AP2008★ 5 cited
Approximation of the Semigroup generated by the Robin Laplacian in terms of the Gaussian Semigroup
Robin Nittka
For smooth bounded open sets in euclidean space, we construct corresponding contractive linear extension operators for the space of continuous functions which preserve regularity o…
math.AP2008
Isometric Lattice Homomorphisms between Sobolev Spaces
Markus Biegert, Robin Nittka
Given bounded domains and in $\mathds{R}^N$ and an isometry from to , we give sufficient conditions ensuring that corresponds to a…