科研之友
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摘要
In a previous paper, we defined a space-level version chi(Kh)(L) of Khovanov homology. This induces an action of the Steenrod algebra on Khovanov homology. In this paper, we describe the first interesting operation, Sq(2) : Kh(i,j) (L). Kh(i+2,j) (L). We compute this operation for all links up to 11 crossings; this, in turn, determines the stable homotopy type of chi(Kh)(L) for all such links.
- 出版日期2014-9
