Cobordism of knots on surfaces

  title={Cobordism of knots on surfaces},
  author={Vladimir Turaev},
  journal={Journal of Topology},
  • V. Turaev
  • Published 2 March 2007
  • Mathematics
  • Journal of Topology
We introduce a relation of cobordism for knots in thickened surfaces and study cobordism invariants of such knots. 
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