Maximal Thurston-Bennequin number of two-bridge links.
Ng, Lenhard L. (2001)
Algebraic & Geometric Topology
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Ng, Lenhard L. (2001)
Algebraic & Geometric Topology
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Slavik Jablan, Ljiljana Radović, Radmila Sazdanović (2010)
Publications de l'Institut Mathématique
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Louis H. Kauffman, Vassily O. Manturov (2005)
Fundamenta Mathematicae
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We describe new approaches for constructing virtual knot invariants. The main background of this paper comes from formulating and bringing together the ideas of biquandle [KR], [FJK], the virtual quandle [Ma2], the ideas of quaternion biquandles by Roger Fenn and Andrew Bartholomew [BF], the concepts and properties of long virtual knots [Ma10], and other ideas in the interface between classical and virtual knot theory. In the present paper we present a new algebraic construction of virtual...
Bar-Natan, Dror
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Summary of the three lectures. These notes are available electronically at http://www.ma.huji.ac.il/~drorbn/Talks/Srni-9901/notes.html.
Mangum, Brian, Stanford, Theodore (2001)
Algebraic & Geometric Topology
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Garoufalidis, Stavros, Levine, Jerome (2001)
Algebraic & Geometric Topology
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Patrick Gilmer (1993)
Commentarii mathematici Helvetici
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Slavik Jablan (2000)
Visual Mathematics
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Paweł Traczyk (1995)
Banach Center Publications
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Vassily O. Manturov (2005)
Fundamenta Mathematicae
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We consider the hierarchy flats, a combinatorial generalization of flat virtual links proposed by Louis Kauffman. An approach to constructing invariants for hierarchy flats is presented; several examples are given.
Roger Fenn, Louis H. Kauffman, Vassily O. Manturov (2005)
Fundamenta Mathematicae
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The present paper gives a quick survey of virtual and classical knot theory and presents a list of unsolved problems about virtual knots and links. These are all problems in low-dimensional topology with a special emphasis on virtual knots. In particular, we touch new approaches to knot invariants such as biquandles and Khovanov homology theory. Connections to other geometrical and combinatorial aspects are also discussed.