Dr. Elisa Hartmann
Researcher
Universität Bielefeld
E-mail: elisa.hartmann(at)math.uni-bielefeld.de
Project
39Geometric invariants of discrete and locally compact groups
Publications within SPP2026
We develop an algorithm for recognizing whether a character belongs to \(\Sigma^m\). In order to apply it we just need to know that the ambient group is of type \(\mathrm{FP}_m\) or of type \( \mathrm{F}_2\) and that the word problem is solvable for this group. Then finite data is sufficient proof of membership in \(\Sigma^m\), not just for the given character but also for a neighborhood of it.
Related project(s):
39Geometric invariants of discrete and locally compact groups