Oriented Matroids

image of the K12

THE COMPLETE GRAPH WITH 12 VERTICES ON A SURFACE OF GENUS 6

Adjacent curves at a point together with the connection of its endpoints form triangles all of which form the 2-manifold. Foto of N.Haehn, Wiesbaden, Design: J.Bokowski

For more information see

  • On the Generation of Oriented Matroids (Discrete Comp. Geometry 2000, special volume on the occassion of Branko Gruenbaum's 70th birthday)
  • Software from Darmstadt on oriented matroids

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    last update: Oct. 4, 2000