An invariant for open virtual strings
几何拓扑
2007-05-23 v2
摘要
Extended Alexander groups are used to define an invariant for open virtual strings. Examples of non-commuting open strings and a ribbon-concordance obstruction are given. An example is given of a slice virtual open string that is not ribbon. Definitions are extended to open n-strings.
引用
@article{arxiv.math/0409185,
title = {An invariant for open virtual strings},
author = {Daniel S. Silver and Susan G. Williams},
journal= {arXiv preprint arXiv:math/0409185},
year = {2007}
}
备注
9 pages, 10 figures. Version 2 includes improvements to section 3. To appear in J. Knot Theory and its Ramifications