R. Nittka

activity

20072025

most citedRegularity of Solutions of Linear Second Order Elliptic and Parabolic Boundary Value Problems on Lipschitz Domains

104 citations · 168 across the 13 of their papers we have counts for

collaborators

Showing 2008 · math.APShow all

2 papers · 2 filters

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 $Ω_{1}$ and $Ω_{2}$ in $\mathds{R}^N$ and an isometry $T$ from $W^{1, p} (Ω_{1})$ to $W^{1, p} (Ω_{2})$ , we give sufficient conditions ensuring that $T$ corresponds to a…