The terminology ‘plus construction’ is used for two very different types of construction.
The version which sends a presheaf to a separated presheaf to a sheaf is described at plus construction on presheaves and sheaf.
The process of killing a perfect normal subgroup of the fundamental group of a space is described under Quillen plus construction.
Last revised on April 30, 2012 at 10:58:30. See the history of this page for a list of all contributions to it.