Keywords. Virtual link, tetravalent graph, stable equivalence
AMS subject classification. Primary: 57M25. Secondary: 57M27 57M15.
Submitted: 18 August 2002. (Revised: 15 June 2003.) Accepted: 23 October 2002. Published: 21 June 2003.
Department of Mathematics, University of California
Davis, CA 95616, USA
AGT home page
These pages are not updated anymore. They reflect the state of . For the current production of this journal, please refer to http://msp.warwick.ac.uk/.