Crossing number may refer to:
Crossing number (knot theory) of a knot is the minimal number of crossings in any knot diagram for the knot.
The average crossing number is a variant of crossing number obtained from a three-dimensional embedding of a knot by averaging over all two-dimensional projections.
The link crossing number is the sum of positive and negative crossings
Crossing number (graph theory) of a graph is the minimal number of edge intersections in any planar representation of the graph.
Undergraduate Texts in Mathematics
Graduate Studies in Mathematics
Hellenica World - Scientific Library
Retrieved from "http://en.wikipedia.org/"
All text is available under the terms of the GNU Free Documentation License
