On the plus parts of the class numbers of cyclotomic fields
Kalyan Sekhar Chakraborty, Azizul Hoque · arXiv (Cornell University) · 2023
We exhibit some new families of cyclotomic fields which have non-trivial plus parts of their class numbers. We also prove the $3$ - divisibility of the plus part of the class number of another family consisting of infinitely many cyclotomic fields. At the end, we provide some numerical examples supporting our results.