Syzygies and Homotopy Theory By F.E.A. Johnson
English | PDF(Repost),EPUB | 2012 | 307 Pages | ISBN : 1447122933 | 7.02 MB
The most important invariant of a topological space is its fundamental group. When this is trivial, the resulting homotopy theory is well researched and familiar. In the general case, however, homotopy theory over nontrivial fundamental groups is much more problematic and far less well understood.