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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.
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页码:1329 / 1333
页数:5
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