Matrix factorizations and link homology

Matrix factorizations and link homology
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矩阵分解和链接同源性

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发表时间:
2004
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通讯作者:
L. Rozansky
L. Rozansky
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作者:
M. Khovanov;L. Rozansky

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作者:Khovanov,Mikhail; Rozansky,Lev|摘要:对于每一个正整数n,HOMFLY链接多项式专门化为一个单变量多项式,可以从量子sl(n)的表示理论中恢复。对于每一个这样的n,我们建立一个双梯度的同源理论的联系,这个多项式的欧拉特征。我们构造的核心是利用矩阵分解理论,它提供了孤立超曲面奇点上极大Cohen-Macaulay模的线性代数描述。
Author(s): Khovanov, Mikhail; Rozansky, Lev | Abstract: For each positive integer n the HOMFLY polynomial of links specializes to a one-variable polynomial that can be recovered from the representation theory of quantum sl(n). For each such n we build a doubly-graded homology theory of links with this polynomial as the Euler characteristic. The core of our construction utilizes the theory of matrix factorizations, which provide a linear algebra description of maximal Cohen-Macaulay modules on isolated hypersurface singularities.