Contributions to Khovanov Homology
Contributions to Khovanov Homology
复制标题
对霍瓦诺夫同调的贡献
DOI:
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发表时间:
2008
期刊:
影响因子:
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通讯作者:
S. Wehrli
中科院分区:
文献类型:
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作者:
S. Wehrli
Khovanov homology ist a new link invariant, discovered by M. Khovanov, and used by J. Rasmussen to give a combinatorial proof of the Milnor conjecture. In this thesis, we give examples of mutant links with different Khovanov homology. We prove that Khovanov's chain complex retracts to a subcomplex, whose generators are related to spanning trees of the Tait graph, and we exploit this result to investigate the structure of Khovanov homology for alternating knots. Further, we extend Rasmussen's invariant to links. Finally, we generalize Khovanov's categorifications of the colored Jones polynomial, and study conditions under which our categorifications are functorial with respect to colored framed link cobordisms. In this context, we develop a theory of Carter--Saito movie moves for framed link cobordisms.