Combinatorial Structure of Manifolds with Poincaré Conjecture
arXiv:1004.1231
Abstract
A manifold inherits a labeled -dimensional graph structure consisting of its charts. This structure enables one to characterize fundamental groups of manifolds, classify those of locally compact manifolds with finite non-homotopic loops by that of labeled graphs . As a by-product, this approach also concludes that {\it every homotopy -sphere is homeomorphic to the sphere for an integer }, particularly, the Perelman's result for .
15 pages, 5 figures