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Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826(e) ISSN 0002-9939(p)

     

On the divisibility of the class number of imaginary quadratic number fields

Author(s): Stéphane R. Louboutin
Journal: Proc. Amer. Math. Soc. 137 (2009), 4025-4028.
MSC (2000): Primary 11R29; Secondary 11R11
Posted: July 22, 2009
MathSciNet review: 2538563
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Abstract | References | Similar articles | Additional information

Abstract: We prove that if at least one of the prime divisors of an odd integer $ U\geq 3$ is equal to $ 3$ mod $ 4$, then the ideal class group of the imaginary quadratic field $ \mathbf{Q}(\sqrt{1-4U^n})$ contains an element of order $ n$.


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Additional Information:

Stéphane R. Louboutin
Affiliation: Institut de Mathématiques de Luminy, UMR 6206, 163, avenue de Luminy, Case 907, 13288 Marseille Cedex 9, France
Email: loubouti@iml.univ-mrs.fr

DOI: 10.1090/S0002-9939-09-10021-7
PII: S 0002-9939(09)10021-7
Keywords: Class number, imaginary quadratic field, divisibility
Received by editor(s): March 20, 2009,
Received by editor(s) in revised form: April 9, 2009
Posted: July 22, 2009
Communicated by: Ken Ono
Copyright of article: Copyright 2009, American Mathematical Society
The copyright for this article reverts to public domain after 28 years from publication.




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