Eric Forgy two-sided differential ideal

Definition

Given a graded differential algebra $(\Omega,d)$, a two-sided differential ideal is a two-sided ideal $\mathcal{I}$ closed under $d$, i.e. $d\mathcal{I}\subset\mathcal{I}$.

References

• F. Müller-Hoissen, Introduction to Noncommutative Geometry of Commutative Algebras and Applications in Physics