In these lecture notes on number theory I am reading I came across the notation $\Psi(e^t;a,q)$ in connection with the Dirichlet theorem on arithmetic progression. I was hoping someone could help me identify some candidates for this function so I can make it through this segment of the notes. Thanks!
2026-04-18 00:41:25.1776472885
Trouble Identifying a "Psi" Function in Number Theory
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