In this paper we develop two ways of computing special values of zeta function attached to a real quadratic field. Comparing these values we obtain various class number 1 criteria for real quadratic fields of Richaud Degert type.
Class number 2 problem for certain real quadratic fields of Richaud–Degert type
✍ Scribed by Dongho Byeon; Jungyun Lee
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 177 KB
- Volume
- 128
- Category
- Article
- ISSN
- 0022-314X
No coin nor oath required. For personal study only.
✦ Synopsis
In this paper we will apply Biró's method in [A. Biró, Yokoi's conjecture, Acta Arith. 106 (2003) 85-104; A. Biró, Chowla's conjecture, Acta Arith. 107 (2003) 179-194] to class number 2 problem of real quadratic fields of Richaud-Degert type and will show that there are exactly 4 real quadratic fields of the form K = Q( n 2 + 1) with class number 2, where n 2 + 1 is a even square free integer.
📜 SIMILAR VOLUMES
Focusing on a particular case, we will show that one can explicitly determine the quartic fields \(\mathbf{K}\) that have ideal class groups of exponent \(\leqslant 2\), provided that \(\mathbf{K} / \mathbf{Q}\) is not normal, provided that \(\mathbf{K}\) is a quadratic extension of a fixed imaginar