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arXiv 1609.03585math.GT
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色同调、Khovanov同调和挠

Chromatic homology, Khovanov homology, and torsion

Adam M. Lowrance, Radmila Sazdanovic

摘要:

在前几个同调分次中,一个链环的Khovanov同调和与该链环有关的图的色多项式的分类之间存在同构。本文证明了色多项式的范畴化只包含二阶挠,从而Khovanov同调在定义同构的分次中只包含二阶挠.我们还证明了奇Khovanov同调在其前几个同调分次是无挠的。

英文摘要:

In the first few homological gradings, there is an isomorphism between the Khovanov homology of a link and the categorification of the chromatic polynomial of a graph related to the link. In this article, we show that the categorification of the chromatic polynomial only contains torsion of order two, and hence Khovanov homology only contains torsion of order two in the gradings where the isomorphism is defined. We also prove that odd Khovanov homology is torsion-free in its first few homological gradings.

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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