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arXiv 2402.02553math.GThep-thmath-phmath.GRmath.MPmath.RT
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闭合4-辫子与Jones纽结猜想

Closed 4-braids and the Jones unknot conjecture

Dmitriy Korzun, Elena Lanina, Alexey Sleptsov

AI总结:

针对Jones纽结猜想中4股辫子情形的未解问题,研究发现一族以拧数为参数、可能对应非平凡纽结的双变量HOMFLY-PT多项式(其Jones多项式平凡),探究其性质并提出检验方法与多股推广思路。

摘要:

Jones问题是探究是否存在具有平凡单变量$q$的Jones多项式的非平凡纽结的问题。尽管已有大量研究尝试,这一基础问题的答案仍未明确。在辫子表示中,4股辫子的情形同样悬而未决。S. Bigelow于2000年证明:若4股辫子的Burau表示是非忠实的,则存在无穷多个非平凡纽结具有平凡的双变量HOMFLY-PT多项式,进而具有平凡的Jones多项式——因为后者可通过将HOMFLY-PT多项式的一个变量特殊化为$A=q^2$得到。\n 本文研究4股辫子,探讨是否存在具有平凡Jones多项式但非平凡HOMFLY-PT多项式的非平凡纽结。我们发现存在一整族以拧数为参数的单参数双变量多项式族,它们可能是某些纽结的HOMFLY-PT多项式。我们探究了所得假设性HOMFLY-PT多项式的多种性质,并提出了若干检验这些公式的方法。本文还对多股辫子的情形提出了推广方案。

英文摘要:

The Jones problem is a question whether there is a non-trivial knot with the trivial Jones polynomial in one variable $q$. The answer to this fundamental question is still unknown despite numerous attempts to explore it. In braid presentation the case of 4-strand braids is already open. S. Bigelow showed in 2000 that if the Burau representation for four-strand braids is unfaithful, then there is an infinite number of non-trivial knots with the trivial two-variable HOMFLY-PT polynomial and hence, with the trivial Jones polynomial, since it is obtained from the HOMFLY-PT polynomial by the specialisation of one of the variables $A=q^2$. In this paper, we study four-strand braids and ask whether there are non-trivial knots with the trivial Jones polynomial but a non-trivial HOMFLY-PT polynomial. We have discovered that there is a whole 1-parameter family, parameterised by the writhe number, of 2-variable polynomials that can be HOMFLY-PT polynomials of some knots. We explore various properties of the obtained hypothetical HOMFLY-PT polynomials and suggest several checks to test these formulas. A generalisation is also proposed for the case of a large number of strands.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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