Commensurability of automorphism groups
classification
🧮 math.RA
math.NT
keywords
groupsautomorphismcommensurabilitymodulesaddressedallowscasescertain
read the original abstract
We develop a theory of commensurability of groups, of rings, and of modules. It allows us, in certain cases, to compare sizes of automorphism groups of modules, even when those are infinite. This work is motivated by the Cohen-Lenstra heuristics on class groups. The number theoretic implications will be addressed in a separate paper.
This paper has not been read by Pith yet.
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.