Circle bundles over 4-manifolds
Abstract
Every 1-connected topological 4-manifold M admits a S1-covering by #r-1S2× S3, where r=rankH2(M;BbbZ).
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.