2000/07/03 by Sam Nelson
Mathematics · #math.GT #msc:57M25
published as J. knot Theory Ramifications 10 (2001) 931-935 · 5 pages; see http://www.math.lsu.edu/~nelson for a higher resolution version and more about virtual knots
arxiv created 2000/07/03 · arxiv updated 2009/11/30
The forbidden moves can be combined with Gauss diagram Reidemeister moves to obtain move sequences with which we may change any Gauss diagram (and hence any virtual knot) into any other, including in particular the unknotted diagram