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A refinement of Koblitz's conjecture by Zywina, David is a scholarly article available to read on EtoBox.

What is A refinement of Koblitz's conjecture about?

Let E be an elliptic curve over the number field Q. In 1988, Koblitz conjectured an asymptotic for the number of primes p for which the cardinality of the group of F_p-points of E is prime. However, the constant occurring in his asymptotic does not take into account that the distributions of the |E(F_p)| need not be independent modulo distinct primes. We shall describe a corrected constant. We also take the opportunity to extend the scope of the original conjecture to ask how often |E(F_p)|/t is prime for a fixed positive integer t, and to consider elliptic curves over arbitrary number fields. Several worked out examples are provided to supply numerical evidence for the new conjecture.

Author

Zywina, David

Published

2009

Language

EN