Exact differential form
= Exact differential form
{title2=$\alpha=d\beta$}
A differential form is exact when it is the exterior derivative of a form of one lower degree. Since $d^2=0$, every exact form is closed.
= Exact differential form
{title2=$\alpha=d\beta$}
A differential form is exact when it is the exterior derivative of a form of one lower degree. Since $d^2=0$, every exact form is closed.