An explicit formula for the Picard group of the cyclic group of order p2
Journal article, 1994
We give a formula for the Picard group of the integer group ring of the cyclic group of order p2 for any odd prime p . As a corollary one gets a formula for properly irregular prime p in terms of Bernoulli numbers.
Author
Alexander Stolin
Proceedings of the American Mathematical Society
0002-9939 (ISSN) 1088-6826 (eISSN)
Vol. 121 2 375-383Subject Categories
Mathematics