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arXiv 1003.0598math.GTmath.SG
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加边Heegaard弗洛尔同调中的双模

Bimodules in bordered Heegaard Floer homology

Robert Lipshitz, Peter S. Ozsvath, Dylan P. Thurston

摘要:

加边Heegaard弗洛尔同调是一个三流形不变量,它将曲面F与代数A(F)联系起来,将边界与F相同的三流形Y与A(F)上的模联系起来。在本文中,我们建立了这个不变量的自然性质。改变F与Y张量边界之间的同构,得到A(F)上具有合适双模的加边不变量。这些双模给出了A(F)上模范畴上一个适当基映射类群的作用。这样一个双模的霍赫希尔德同调调与相关的开卷分解的结弗洛尔同调是一致的。在建立这些结果的过程中,我们还计算了A(F)的同调。我们还证明了一个对偶定理有关的两个版本的3-流形不变量。最后,在亏格为1的曲面的情况下,我们显式地计算了映射类群作用。这完成了结补的有界Heegaard弗洛尔同调的结弗洛尔同调的描述。

英文摘要:

Bordered Heegaard Floer homology is a three-manifold invariant which associates to a surface F an algebra A(F) and to a three-manifold Y with boundary identified with F a module over A(F). In this paper, we establish naturality properties of this invariant. Changing the diffeomorphism between F and the boundary of Y tensors the bordered invariant with a suitable bimodule over A(F). These bimodules give an action of a suitably based mapping class group on the category of modules over A(F). The Hochschild homology of such a bimodule is identified with the knot Floer homology of the associated open book decomposition. In the course of establishing these results, we also calculate the homology of A(F). We also prove a duality theorem relating the two versions of the 3-manifold invariant. Finally, in the case of a genus one surface, we calculate the mapping class group action explicitly. This completes the description of bordered Heegaard Floer homology for knot complements in terms of the knot Floer homology.

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