Strong Hanani-Tutte on the Projective Plane

  • Authors:
  • Michael J. Pelsmajer;Marcus Schaefer;Despina Stasi

  • Affiliations:
  • pelsmajer@iit.edu;mschaefer@cs.depaul.edu;stasi@math.uic.edu

  • Venue:
  • SIAM Journal on Discrete Mathematics
  • Year:
  • 2009

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Abstract

If a graph can be drawn in the projective plane so that every two nonadjacent edges cross an even number of times, then the graph can be embedded in the projective plane.