In field theory, a branch of algebra, a field extension
is said to be regular if k is algebraically closed in L (i.e.,
is the set of elements in L algebraic over k) and L is separable over k, or equivalently,
is an integral domain when
[1][2] There is also a similar notion: a field extension
A self-regular extension is relatively algebraically closed in k.[6] However, a self-regular extension is not necessarily regular.
[citation needed] This abstract algebra-related article is a stub.