Formula:7485

Digital Library of Mathematical Functions ID 20.6.E6

${\displaystyle{\displaystyle\delta_{2j}(\tau)=\left.\sum_{n=-\infty}^{\infty}\sum_{\begin{subarray}{c}m=-\infty\\ \left|m\right|+\left|n\right|\neq 0\end{subarray}}^{\infty}\right.(m+n\tau)^{-2j},}}$

Symbols List

• ${\displaystyle{\displaystyle m}}$: integer
• ${\displaystyle{\displaystyle n}}$: integer
• ${\displaystyle{\displaystyle\tau}}$: lattice parameter
 

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