An L-function $L(s) = \sum_{n=1}^{\infty} \frac{a_n}{n^s}$ is called **self-dual** if its Dirichlet coefficients $a_n$ are real.

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**Knowl status:**

- Review status: beta
- Last edited by John Cremona on 2015-08-11 10:26:29.617000

An L-function $L(s) = \sum_{n=1}^{\infty} \frac{a_n}{n^s}$ is called **self-dual** if its Dirichlet coefficients $a_n$ are real.

- Review status: beta
- Last edited by John Cremona on 2015-08-11 10:26:29.617000