A bigraded object is a graded object of graded objects.
The terms in a filtered chain complex.
The terms in a double complex.
The terms of an exact couple.
The terms on any one page of a spectral sequence (as one ranges over the pages, it is even triply graded).
Last revised on February 10, 2016 at 14:36:52. See the history of this page for a list of all contributions to it.