Formality of equivariant intersection cohomology
Abstract
We present several approaches to equivariant intersection cohomology. We show that for a complete algebraic variety acted by a connected algebraic group G it is a free module over H*(BG). The result follows from the decomposition theorem or from a weight argument.
0
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.