3 papers
math.AP2026
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…
cs.RO2025
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…
math.AP2024
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 t…