Kronecker delta
= Kronecker delta
{c}
{title2=$\delta_{ij}$}
{wiki}
The Kronecker delta is $\delta_{ij}=1$ when $i=j$ and zero otherwise. It is the component matrix of the identity map in a basis.
= Kronecker delta
{c}
{title2=$\delta_{ij}$}
{wiki}
The Kronecker delta is $\delta_{ij}=1$ when $i=j$ and zero otherwise. It is the component matrix of the identity map in a basis.