Diagonal approximation and the cohomology ring of the fundamental groups of surfaces
Abstract
We construct finite free resolutions of Z over ZG, where G is the fundamental group of a surface distinct from S2 and RP2, and define diagonal approximations for these resolutions. We then procceed to give some possible applications that come with the knowledge of those maps.
0
Turn this paper into a lesson
ArcXiv compiles a structured reading guide from this paper's metadata: plain-English importance, contributions, prerequisite concepts, which sections to read first, flashcards, and a quiz. Grounded in the abstract, never invented.