symmetric monoidal (∞,1)-category of spectra
A filtered ring is a filtered object in the category Ring of rings.
The associated graded ring to a filtered ring is the corresponding associated graded object.
A version of PBW theorem states that if a Lie algebra over a field is flat as a -module over a commutative ground ring containing rationals, then the associated graded ring is isomorphic to the symmetric algebra of the underlying -module of .
Last revised on March 27, 2021 at 22:39:50. See the history of this page for a list of all contributions to it.