ℓ-torsion bounds for the class group of number fields with an ℓ-group as Galois group
- 24 March 2022
- journal article
- research article
- Published by American Mathematical Society (AMS) in Proceedings of the American Mathematical Society
- Vol. 150 (7), 2793-2805
- https://doi.org/10.1090/proc/15882
Abstract
We describe the relations among the l-torsion conjecture, a conjecture of Malle giving an upper bound for the number of extensions, and the discriminant multiplicity conjecture. We prove that the latter two conjectures are equivalent in some sense. Altogether, the three conjectures are equivalent for the class of solvable groups. We then prove the l-torsion conjecture for l-groups and the other two conjectures for nilpotent groups.Keywords
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