Dual cone
= Dual cone
{title2=$\sigma^\vee$}
{wiki}
For a cone $\sigma\subseteq N_{\mathbb R}$, its dual cone is
$$
\sigma^\vee=\{m\in M_{\mathbb R}:\langle m,v\rangle\geq0\text{ for all }v\in\sigma\}.
$$
= Dual cone
{title2=$\sigma^\vee$}
{wiki}
For a cone $\sigma\subseteq N_{\mathbb R}$, its dual cone is
$$
\sigma^\vee=\{m\in M_{\mathbb R}:\langle m,v\rangle\geq0\text{ for all }v\in\sigma\}.
$$