Given a local or global frame \((E_1, \ldots, E_n)\). Then the corresponding local or global coframe is defined by
\begin{equation*} \epsilon^i(E_j)=\delta^i_j. \end{equation*}If a coframe is given we find a frame with the same procedure.
Given a local or global frame \((E_1, \ldots, E_n)\). Then the corresponding local or global coframe is defined by
\begin{equation*} \epsilon^i(E_j)=\delta^i_j. \end{equation*}If a coframe is given we find a frame with the same procedure.