A Steenrod square on Khovanov homology
A Steenrod square on Khovanov homology
复制标题
Khovanov 同调上的 Steenrod 平方
DOI:
10.1112/jtopol/jtu005
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发表时间:
2012
影响因子:
1.1
通讯作者:
Sucharit Sarkar
中科院分区:
文献类型:
--
作者:
Robert Lipshitz;Sucharit Sarkar
In a previous paper, we defined a space‐level version XKh(L) of Khovanov homology. This induces an action of the Steenrod algebra on Khovanov homology. In this paper, we describe the first interesting operation, Sq2:Khi,j(L)→Khi+2,j(L) . We compute this operation for all links up to 11 crossings; this, in turn, determines the stable homotopy type of XKh(L) for all such links.