Some computer programs in low-dimensional topology



  • HFhat - to compute \widehat{HF} and \widehat{HFK} (last update: 2006.09.14)
    This is a beta version program I wrote to compute the hat version of the Heegaard Floer homology of a three-manifold or the knot Floer homology for a knot in a rational homology sphere with Z2 coefficients. This program realizes the algorithm in a paper of the author with Sucharit Sarkar.

    Click here for details and download.
  • Oneone (to appear)
    This is a program (written jointly with Matt Hedden) to compute the knot Floer homology of a (1,1) knot from its group representation.