The Strengthened Hanna Neumann Conjecture I: A Combinatorial Proof (Revised July 6, 2010)
  • This paper attempted to give a combinatorial proof of the Strengthened Hanna Neumann Conjecture, based on a sheaf theoretic approach. Both versions of these papers have errors, and at present I am working on writing down a sheaf theoretic proof of the Strengthened Hanna Neumann Conjecture before I return to seeing what one can do without sheaf theory.