Multiplicative groups avoiding a fixed group
We know that any finite abelian group G appears as a subgroup of infinitely many multiplicative groups [Formula: see text] (the abelian groups of size [Formula: see text] that are the multiplicative groups of units in the rings [Formula: see text]). It seems to be less well appreciated that G appears as a subgroup of almost all multiplicative groups [Formula: see text]. We exhibit an asymptotic formula for the counting function of those integers whose multiplicative group fails to contain a copy of G, for all finite abelian groups G (other than the trivial one-element group).
Authors
- Greg Martin (ORCID: https://orcid.org/0000-0002-8476-9495)
- Matthias Hannesson
Institutions
- University of British Columbia (CA)
- Vancouver Island University (CA)
Publication Details
- Journal
- International Journal of Number Theory
- Published
- 2025-02-07
- DOI
- https://doi.org/10.1142/s1793042125500691
- Citations
- 1
- Primary Topic
- Finite Group Theory Research
- Type
- article
- Field-Weighted Citation Impact
- 5.33