A formula for the S-class number of an algebraic torus
نویسندگان
چکیده
منابع مشابه
A Formula for the S-Class Number of an Algebraic Torus
We obtain a formula for the S-class number of an algebraic torus defined over a number field in terms of the étale and Galois cohomology groups of its character module. As applications, we give different proofs of some classical class number formulas of Shyr, Ono, Katayama and Morishita.
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ژورنال
عنوان ژورنال: Journal of Number Theory
سال: 2017
ISSN: 0022-314X
DOI: 10.1016/j.jnt.2017.06.010