1 citations · 1 across the 4 of their papers we have counts for
4 papers
Higher integrability of solutions to elliptic equations under additional sign constraints
Stefan Schiffer
Solutions to elliptic equations often exhibit higher regularity properties such as \emph{higher integrability}. That is, for instance, a solution to a system that a priori only…
Insights from Interviews with Teachers and Students on the Use of a Social Robot in Computer Science Class in Sixth Grade
Ann-Sophie L. Schenk, Stefan Schiffer, Heqiu Song
In this paper we report on first insights from interviews with teachers and students on using social robots in computer science class in sixth grade. Our focus is on learning about…
On incompressible flows in discrete networks and Shnirelman's inequality
Stefan Schiffer, Martina Zizza
Let and be two volume-preserving diffeomorphisms on the cube , . We show that there is a divergence-free vector field such tha…
-free truncation and higher integrability of minimisers
Stefan Schiffer
We show higher integrability of minimisers of functionals \[ I(u) = \int_Ω f(x,u(x)) ~\mathrm{d}x \] subject to a differential constraint under natural -growth…