2 papers
math.GR2025
Subgroups of Cyclically Amalgamated Free Products
Martin Kreuzer, Anja Moldenhauer, Gerhard Rosenberger
Given a group which is the free product of two finitely generated groups and with amalgamation over a cyclic subgroup which is malnormal in …
cs.IT2025
Code Equivalence, Point Set Equivalence, and Polynomial Isomorphism
Martin Kreuzer
The linear code equivalence (LCE) problem is shown to be equivalent to the point set equivalence (PSE) problem, i.e., the problem to check whether two sets of points in a projectiv…