# [Tex/LaTex] How I solve the problem of writing an formula with just one accolade

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I should write the following formula:
This is the code:

$$Q_{sp}=\left\{\stackrel{\frac{\kappa_{0}\kappa_{1}\dots \kappa_{Zp-1}}{\mu_{1}\mu_{2}\dots\mu_{Zp} (1+\sum^{n}_{l=1} \frac{\kappa_{0}\kappa_{1} \dots \kappa_{l-1}}{\mu_{1}\mu_{2}\dots \mu_{l}})} \dots 1\leq Zp\leq number\_pol}{\frac{1}{1+\sum^{n}_{l=1}\frac{\kappa_{0}\kappa_{1} \dots \kappa_{l-1}}{\mu_{1}\mu_{2}\dots \mu_{l}}} \dots Zp=0}$$


How I solve the problem of writing it by just one accolade without having this mistake

!Missing  \right. inserted


Example from the manual from AMSmath package page 8.

\documentclass{article}
\usepackage{amsmath}
\begin{document}
\begin{equation*}
\left.
\begin{aligned}
B’&=-\partial\times E,\\
E’&=\partial\times B - 4\pi j,
\end{aligned}
\right\}
\end{equation*}
\end{document}


\documentclass{article}
$$Q_{sp}=\left\{\stackrel{\frac{\kappa_{0}\kappa_{1}\dots \kappa_{Zp-1}}{\mu_{1}\mu_{2}\dots\mu_{Zp} (1+\sum^{n}_{l=1} \frac{\kappa_{0}\kappa_{1}\dots \kappa_{l-1}}{\mu_{1}\mu_{2}\dots \mu_{l}})} \dots 1\leq Zp\leq number\_pol}{\frac{1}{1+\sum^{n}_{l=1}\frac{\kappa_{0}\kappa_{1} \dots \kappa_{l-1}}{\mu_{1}\mu_{2}\dots \mu_{l}}} \dots Zp=0}\right.$$