NEW INVARIANT OF 4-MOVES

NEW INVARIANT OF 4-MOVES
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4 步棋的新不变量

DOI:
10.1142/s0218216507005798
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发表时间:
2007
期刊:
影响因子:
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通讯作者:
R. Sahi
R. Sahi
中科院分区:
--
文献类型:
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作者:
M. Dabkowski;R. Sahi

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在基于绞链关系的不变量理论中,特别是在绞链模中,研究至多n步的链环的等价类起着重要的作用。本文考虑Nakanishi的4步猜想[12]。将猜想修改为2-分量环(同伦平凡环)是Kawauchi [10]提出的一个问题。我们定义了一个新的不变量的链接,这是保持4-移动,并分析其潜在的力量。特别地,我们证明了我们的不变量允许我们获得[8,9,13]中关于4-移动的结果。
Study of equivalence classes of links up to n-moves plays an important role in the theory of invariants based on the skein relation and, in particular, skein modules. In this paper, we consider Nakanishi's 4-move conjecture [12]. The modification of the conjecture to 2-component link (homotopically trivial links) is a question proposed by Kawauchi [10]. We define a new invariant of links which is preserved by 4-moves and analyze its potential strength. In particular, we show that our invariant allows us to obtain results of [8, 9, 13] concerning 4-moves.