Article ID Journal Published Year Pages File Type
8897007 Journal of Number Theory 2018 10 Pages PDF
Abstract
Given a curve C over a field K, the period of C/K is the gcd of degrees of K-rational divisor classes, while the index is the gcd of degrees of K-rational divisors. S. Lichtenbaum showed that the period and index must satisfy certain divisibility conditions. For given admissible period, index, and genus, we show that there exists a curve C and a number field K with these desired invariants, as long as the index is not divisible by 4.
Related Topics
Physical Sciences and Engineering Mathematics Algebra and Number Theory
Authors
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