Given two Dirichlet characters $\chi$ and $\psi$ modulo $q$, the **Jacobi sum** associated to these characters is given by $$J(\chi,\psi) = \sum_{r \,\in\, \mathbb{Z}/q\mathbb{Z}} \chi(r)\, \psi(1-r).$$

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- Review status: reviewed
- Last edited by Kiran S. Kedlaya on 2018-07-04 19:40:30

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- 2018-07-04 19:40:30 by Kiran S. Kedlaya (Reviewed)