Khovanov homology and periodic links

  title={Khovanov homology and periodic links},
  author={Maciej Borodzik and Wojciech Politarczyk},
  journal={arXiv: Geometric Topology},
Based on the results of the second author, we define an equivariant version of Lee and Bar-Natan homology for periodic links and show that there exists an equivariant spectral sequence from the equivariant Khovanov homology to equivariant Lee homology. As a result we obtain new obstructions for a link to be periodic. These obstructions generalize previous results of Przytycki and of the second author. 

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