On the -divisibility of even -groups of the ring of integers of a cyclotomic field
arXiv:2308.04099 · doi:10.1007/s11139-025-01177-5
Abstract
Let be a given positive odd integer and an odd prime. In this paper, we shall give a sufficient condition when a prime divides the order of the groups and , where is a primitive th root of unity. When is a -extension contained in for some prime , we also establish a necessary and sufficient condition for the order of to be divisible by .
Some corrections, and rewriting of some parts of Section 6