Weyl reflection
= Weyl reflection
{c}
{title2=$s_\alpha$}
{wiki=Reflection_(mathematics)#Reflections_across_a_hyperplane_through_the_origin}
The reflection associated with a root is $s_\alpha(x)=x-\langle x,\alpha^\vee\rangle\alpha$.
= Weyl reflection
{c}
{title2=$s_\alpha$}
{wiki=Reflection_(mathematics)#Reflections_across_a_hyperplane_through_the_origin}
The reflection associated with a root is $s_\alpha(x)=x-\langle x,\alpha^\vee\rangle\alpha$.