ON A GENERALIZATION OF THE ALEXANDER POLYNOMIAL FOR LONG VIRTUAL KNOTS

被引:3
|
作者
Afanasiev, Denis [1 ]
机构
[1] Moscow MV Lomonosov State Univ, Chair Differential Geometry & Applicat, Moscow 119991, Russia
关键词
Long virtual knot; minimal diagram; Alexander polynomial; virtual crossing; INVARIANTS;
D O I
10.1142/S021821650900752X
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We construct a new invariant polynomial for long virtual knots. It is a generalization of the Alexander polynomial. We designate it as zeta by meaning an analogy with zeta-polynomial for virtual links. The degree of zeta-polynomial estimates the virtual crossing number. We describe some application of zeta-polynomial for the study of minimal long virtual diagrams with respect to the number of virtual crossings.
引用
收藏
页码:1329 / 1333
页数:5
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