English

On the Noether number of $p$-groups

Group Theory 2018-03-20 v3 Commutative Algebra Number Theory Representation Theory

Abstract

A group of order pnp^n (pp prime) has an indecomposable polynomial invariant of degree at least pn1p^{n-1} if and only if the group has a cyclic subgroup of index at most pp or it is isomorphic to one of two particular groups of small order.

Keywords

Cite

@article{arxiv.1604.01938,
  title  = {On the Noether number of $p$-groups},
  author = {Kálmán Cziszter},
  journal= {arXiv preprint arXiv:1604.01938},
  year   = {2018}
}

Comments

Several corrections and simplifications made

R2 v1 2026-06-22T13:27:18.399Z